What is the expected standard deviation of stock A's returns
based on the information presented in the table? Outcome
Probability of outcome Stock A return in outcome :
Good 16% 65.00%
Medium 51% 17.0
Answers
The expected standard deviation of stock A's returns, based on the information presented in the table, is approximately 23.57%.
To calculate the expected standard deviation of stock A's returns, we first need to calculate the variance. The variance is the average of the squared deviations from the expected return, weighted by the probabilities of each outcome.
Given the information provided:
Outcome Probability Stock A Return
Good 16% 65.00%
Medium 51% 17.00%
Let's calculate the expected return first:
Expected Return = (Probability of Good × Stock A Return in Good) + (Probability of Medium × Stock A Return in Medium)
= (0.16 × 65.00%) + (0.51 × 17.00%)
= 10.40% + 8.67%
= 19.07%
Next, we calculate the squared deviations from the expected return for each outcome:
Deviation from Expected Return in Good = Stock A Return in Good - Expected Return
= 65.00% - 19.07%
= 45.93%
Deviation from Expected Return in Medium = Stock A Return in Medium - Expected Return
= 17.00% - 19.07%
= -2.07%
Now, we calculate the variance:
Variance = (Probability of Good × Squared Deviation in Good) + (Probability of Medium × Squared Deviation in Medium)
= (0.16 × (45.93%^2)) + (0.51 × (-2.07%^2))
= (0.16 × 0.2110) + (0.51 × 0.0428)
= 0.0338 + 0.0218
= 0.0556
Finally, we calculate the standard deviation, which is the square root of the variance:
Standard Deviation = √Variance
= √0.0556
= 0.2357 or approximately 23.57%
Therefore, the expected standard deviation of stock A's returns, based on the information presented in the table, is approximately 23.57%.
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Related Questions
When using a one-sample t-procedure to construct a confidence interval for the mean of a finite population, a condition is that the population size be at least 10 times the sample size. The reason for the condition is to ensure that
a. The sample size large enough
b. The central limit theorem is applicable for the sample mean
c. The sample standar deviation is good apporximation of the population standar deviation
d. The degree dependence among observations is negligible
e. The sampling method is not biased
Answers
The correct answer is (b) The central limit theorem is applicable for the sample mean.
The condition that the population size be at least 10 times the sample size is necessary to ensure that the sample mean follows a normal distribution, as required by the central limit theorem. The central limit theorem states that the sample mean will be approximately normally distributed, regardless of the underlying population distribution, as long as the sample size is large enough. In this case, the condition is necessary to ensure that the sample size is sufficiently large for the central limit theorem to be applicable. Options (a), (c), (d), and (e) are not the correct answers because they do not directly relate to the condition that the population size be at least 10 times the sample size.
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Which ordered pair represents the yintercept of the graph of the equation
y=-4x - 7?
A. (-4,0)
B. (0, -4)
C. (0, -7)
D. (-7,0)
Answers
Answer:
C
Step-by-step explanation:
The equation of a line in slope- intercept form is
y = mx + c ( m is the slope and c the y- intercept )
y = - 4x - 7 ← is in slope- intercept form
with y- intercept c = - 7 ⇒ (0, - 7 ) → C
Answer:
C
Step-by-step explanation:
Put x=0 to get Y intercept
Y=-4x-7
Y=-4(0)-7
Y=-7
Therefore the coordinate is (X,Y)=(0,-7)
I coded a secret digit between 1 and 76 by raising it to power 17. I reduced the result modulo 77 and I got the result of 25. What is the number that I coded
Answers
The number that was coded is 45.
How to find the number that was coded?First, note that if you raise any integer between 1 and 76 to the power 17, the result will be an integer with many digits.
However, since we are reducing the result modulo 77, we only need to consider remainders when dividing this large number by 77.
To compute the remainder when raising a number to a power modulo 77, you can use the repeated squaring algorithm. Here's how it works:
Start with the base number, which is the secret digit you want to code (let's call it x).
Compute \(x^2\) modulo 77.
Compute\((x^2)^2\) modulo 77.
Repeat step 3 a total of 15 times. At this point, you have computed x^16 modulo 77.
Multiply \(x^{16}\) by x modulo 77 to get \(x^{17}\) modulo 77.
Alternatively, you can use a built-in function in most programming languages to compute modular exponentiation.
For example, in Python, you can use the pow() function with three arguments: the base, the exponent, and the modulus. Here's how you can use it:
x = 25
for i in range(1, 77):
if pow(i, 17, 77) == x:
print(i)
break
This code will print the secret digit that corresponds to the remainder of 25 when raised to the power of 17 and reduced modulo 77, which is 45.
Therefore, the number you coded is 45.
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Solve the inequality.
-7x - 4 > 17
Answers
Answer:x<-3
Step-by-step explanation:
Answer:
x < -3
Step-by-step explanation:
\(-7x-4>17\\\\-7x-4+4>17+4\\\\-7x>21\\\\\frac{-7x}{-7}>\frac{21}{-7}\\\\x<-3\)
A tennis ball is hit straight up in the air, and its height, in feet above the ground, is modeled by the equation f(t)=3+5t−16t^2 f(t)=3+5t-16t^2 , where t t is measured in seconds since the ball was thrown. Find the solutions to the equation 0=3+5t−16t^2 0=3+5t-16t^2 using the quadratic formula. Show your work! What do the solutions tell us about the tennis ball?
Answers
Answer:
t = -0.304 and 0.62 secs
the ball was thrown 0.62 secs later
Step-by-step explanation:
Given the quadratic equation
0=3+5t−16t^2
We are to factorize it using the formula;
The formula is expressed as
t = -b±√b²-4ac/2a
From the given expression
a = -16 b = 5 c = 3
Substitute
t = -5 ±√5²-4(-16)(3)/2(-16)
t = -5 ±√25+192/-32
t= -5 ±√217/-32
t= -5 ±14.73/-32
t = -5+14.73/-32 and t = -5-14.73/-32
t = -9.73/32 and -19.73/-32
t = -0.304 and 0.62 secs
Hence the ball was thrown 0.62 secs later
Complete the long division problem on your own sheet of paper. Then, fill in the digits. 8) 4 1 6
Answers
For given division,
416 is dividend
8 is divisor
0 is remainder and
52 is quotient
Long division:
long division is a standard division algorithm suitable for dividing multi-digit numbers that is simple enough to perform by hand.
In the case of long division of numbers, the remainder is always smaller than the divisor. We can verify the quotient and the remainder of the division using the division formula,
Dividend = (Divisor × Quotient) + Remainder.
The above formula is also known as division algorithm.
Example:
a ÷ b
a is called dividend and b is called divisor
For given question,
416 ÷ 8
that is,
8 ) 416 ( 52
40
16
16
0
416 is dividend
8 is divisor
0 is remainder
and 52 is quotient
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8th grade math
m<T=
m<F=
pls explain I have no clue what I'm doing
Answers
180
-90
--------
90
-----
2
=
45
both are 45 degrees.
Give the digits in the ones place and the hundredths place.
16.89
Answers
Ones place=6
are the conditions for inference met for carrying out a t-test for a difference in means?no, the random condition is not met.no, the 10% condition is not met.no, the normal/large sample condition is not met.yes, all of the conditions for inference have been met.
Answers
The answer is "no, the normal/large sample condition is not met." In order to carry out a t-test for a difference in means, several conditions must be met.
One of the most important conditions is the normal/large sample condition, which requires that the data come from a population that is approximately normally distributed or that the sample size is large enough to apply the Central Limit Theorem. If this condition is not met, a t-test may not be appropriate, and other methods may need to be used to make inferences about the population.
Other conditions that need to be met include the random condition, which requires that the data be collected using a random sampling method, and the independence condition, which requires that the observations be independent of each other. The 10% condition may also need to be met, which requires that the sample size be no more than 10% of the population size. If all of these conditions are met, then a t-test may be appropriate for making inferences about the population means.
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Me and my friends have been arguing over this for a long time since we can't do math-
What's the answer to 10-10x100-23? I got -1013, and the one is screaming that it's wrong.
Answers
Answer:
ur right
it's -1013
bc you need to do multiplication first so the equation turns out to be
10 - 1000 - 23
so then that turns to -1013 if you calculate left to right
What did ur friend get???
(Efficiency analysis) Baryla Inc. manufactures high quality decorator lamps in a plant located in eastern Tennessee. Last year the firm had sales of $90 million and a gross profit margin of 35 percent. a. How much inventory can Baryla hold and still maintain an inventory turnover ratio of at least 5.6 times? b. Currently, some of Baryla's inventory includes $1.5 million of outdated and damaged goods that simply remain in inventory and are not salable. What inventory turnover ratio must the good inventory maintain in order to achieve an overall turnover ratio of at least 5.6 (including the unsalable items)? a. How much inventory can Baryla hold and still maintain an inventory turnover ratio of at least 5.6 times? The amount of inventory that Baryla can hold is $ million. (Round to one decimal place.).
Answers
The amount of inventory that Baryla can hold is **$16.1 million**.
The inventory turnover ratio is calculated as sales / inventory. To maintain an inventory turnover ratio of at least 5.6, Baryla's inventory must be no more than $90 million / 5.6 = $16.1 million.
Calculation:
```
sales = $90 million
gross profit margin = 35%
inventory turnover ratio = 5.6
inventory = sales / inventory turnover ratio = $90 million / 5.6 = $16.1 million
```
**b. Currently, some of Baryla's inventory includes $1.5 million of outdated and damaged goods that simply remain in inventory and are not salable. What inventory turnover ratio must the good inventory maintain in order to achieve an overall turnover ratio of at least 5.6 (including the unsalable items)?**
The good inventory must maintain an inventory turnover ratio of **9.4 times** in order to achieve an overall turnover ratio of at least 5.6.
The overall inventory turnover ratio is 5.6, and the unsalable inventory is $1.5 million. This means that the good inventory is $90 million - $1.5 million = $88.5 million.
The good inventory must maintain an inventory turnover ratio of $88.5 million / 5.6 = **9.4 times** in order to achieve an overall turnover ratio of at least 5.6.
overall inventory turnover ratio = 5.6
unsalable inventory = $1.5 million
good inventory = $90 million - $1.5 million = $88.5 million
good inventory turnover ratio = $88.5 million / 5.6 = 9.4 times
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Can someone help me with these 4 questions please :) .
I’ll mark you as a brainliest and give points :) .
Answers
1.
60² + 30² = 4500²
Opposite corner = 67.08 ft.
//
2.
6² + 8² = 100²
The wire must be 10 ft.
//
3.
7² + 14² = 245²
The rope is 15.65 ft.
//
4.
180² + 300² = 122400²
He ran 349.85 ft.
//
I'm not too sure about question 3.
Find the cot of polihing the floor of a quare hall at the of ₹15 per m,if each ide of hall i 12. 5 m
Answers
The cost of polishing the floor of the square hall is ₹2343.75
The Side of Square Hall = 12.5 m
The cost of polishing the floor per meter sq. = ₹ 15
We have to find the cost of polishing the floor.
First we will calculate the area of floor of the square hall.
Area of a square is defined as the number of square units needed to fill a square. In general, the area is defined as the region occupied inside the boundary of a flat object or 2d figure. The measurement is done in square units, with the standard unit being square meters (\(m^{2}\)).
Area of Square =\((Side)^{2}\)Area of square=\((12.5)^2\)
Area of square =\(12.5 \times 12.5\)
Area of square =156.25
The area of the floor of Square Hall is 156.25 \(\mathrm{~m}^2$\)
Per square meter cost of polishing the floor is ₹15,
To find the cost of polishing the floor of the square hall of area 156.25 sq. m, simply multiply 15 by the area of the floor of the square hall.
Therefore, the cost of polishing,
=15×156025
=2343.75
Therefore, the cost of polishing is ₹2343.75.
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Find the cost of polishing the floor of a square hall at the rate of 15 per meter sq, if each side of the hall is 12.5 m.
the power to which a number or expression is raised
Answers
The power to which a number or expression is raised is called the exponent.
1. An exponent is a mathematical notation that represents the power to which a number or expression is raised. It is written as a superscript number or variable placed above and to the right of the base number or expression.
2. The base number or expression is the number or expression that is being multiplied repeatedly by itself, raised to the power of the exponent.
3. The exponent tells us how many times the base number or expression should be multiplied by itself. For example, in the expression \(2^3\), the base is 2 and the exponent is 3. This means that 2 should be multiplied by itself three times: 2 * 2 * 2 = 8.
4. The exponent can be a positive whole number, a negative number, zero, or a fraction. Each of these cases has different interpretations:
- Positive exponent: Indicates repeated multiplication. For example, \(2^4\)means 2 multiplied by itself four times.
- Negative exponent: Indicates the reciprocal of the base raised to the positive exponent. For example, \(2^{-3\) means 1 divided by \(2^3\).
- Zero exponent: Always equals 1. For example, \(2^0\) = 1.
- Fractional exponent: Represents a root. For example, \(4^{(1/2)\)represents the square root of 4.
5. Exponents follow certain mathematical properties, such as the product rule \((a^m * a^n = a^{(m+n)})\), the quotient rule \((a^m / a^n = a^{(m-n)})\), and the power rule \(((a^m)^n = a^{(m*n)})\).
Remember to use these rules and definitions to correctly interpret and evaluate expressions involving exponents.
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The harper family budgeted 37% of their income of $53000 for taxes. How much did they budget for taxes?
Answers
Answer: $19,610
Step-by-step explanation:
53000(.37)=19610
The grass in Jamie's yard grew 161616 centimeters in 101010 days. It was growing at a constant rate.
How many days did it take the grass to grow 111 centimeter?
days
How many centimeters did the grass grow in 111 day?
centimeters
Answers
Days it took the grass to grow 1 centimeter and centimeters the grass grew in 1 day
0.625 days to grow 1 cm.
16/10 = 1.6 cm in 1 day.
How many centimeters did the grass grow in 111 days?According to the law of proportion, any two ratios or fractions must be equal.
In only a week and a half, the grass in Jamie's backyard grew by 16 cm. it is expanding at an unchanging pace.
We need to determine how many days have passed since the grass has grown one centimeter.
Let's say that x represents the number of days that the grass grew one centimeter.
Given the following definition of proportion:
16/10=1/x
16x = 10
x = 0.625 days
As a result, one centimeter of grass growth occurred after 0.625 days had passed.
b)
Change x into 1. Because x is the number of days.
16/10=1/1
16/10
1.6
'In conclusion, in 1 day, 1.6 cm will grow.
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B
SIS
M
If = of the pie below is eaten,
what fraction remains?
Answers
Answer:
the answer to this question is 1/4
Answer:
jgcoyc9t9yf9ycrcuflc
Gavin was thinking of a number. Gavin adds 9 to it, then doubles it and gets an answer of 83.2. What was the original number?
Answers
Answer: it is 32.6
Step-by-step explanation:
The orginal number that Gavin was thinking of is 32.60.
What is the original number?
Let the orginal number be represented with y
Gavin adds 9 to the original number: 9 + y
The answer is doubled: 2(9 + y)
The answer is 83.2: 2(9+y) = 83.2
In order to determine the value of y, take the following steps:
Divide both sides of the equation by 2
9 + y = 41.60
Subtract 9 from both sides of the equation
y = 41.60 - 9
y = 32.60
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Amy’s Rental Car charges an initial fee of $50 plus an additional $35 per day to rent a car. Joe’s
Rental Car charges $70 plus an additional $25 per day. For what number of days is the total cost charged by the companies the same?
Answers
Answer:
2 days!
Step-by-step explanation:
So, we have 50 + 35x = 70 + 25x.
Solving, we obtain 10x = 20, so x = 2.
Your answer is 2 days.
If this answer helped you, please tell me! :)
I NEED HELP WITH THIS PLS Q1
Answers
Answer:
B. 80, -160
Step-by-step explanation:
The common ratio between these three numbers is -2.
-10 * -2 = 20
20 * - 2 = -40
-40 * -2 = 80
80 * -2 = -160
Can you write this equation? #16
Answers
Distribute: 21x-14=133
Add like terms: 21x=147
Divide by 21: x=7
Solve for the missing value in the proportion:
6/a = 18/27
A. 9
B.54
C.18
D.81
Answers
Answer:
A
Step-by-step explanation:
6/9=18/27
I just divided 27 by 3 which is 9
solve for x and find m∠FGH
Answers
Answer:
x° = 11°
Z FGI = 60°
Step-by-step explanation:
If GH bisects Z FGI
then Z FGH = Z HGI
or, (3x - 3)° = (4x - 14)°
or, 3x° - 4x° = - 14° + 3°
or, x° = 11°
Z FGI = 33° - 3° + 44° - 14°
= 60°
the walt disney company has successfully used related diversification to create value by:
Answers
The Walt Disney Company has successfully used related diversification to create value by leveraging its existing brand and intellectual properties to enter new markets and expand its product offerings.
Through related diversification, Disney has been able to extend its brand into various industries such as film, television, theme parks, consumer products, and digital media. By utilizing its well-known characters and franchises like Mickey Mouse, Disney princesses, Marvel superheroes, and Star Wars, Disney has been able to capture the attention and loyalty of consumers across different age groups and demographics.
For example, Disney's acquisition of Marvel Entertainment in 2009 allowed the company to expand its presence in the superhero genre and tap into a vast fan base. This strategic move not only brought in new revenue streams through the production and distribution of Marvel films, but also opened doors for merchandise licensing, theme park attractions, and television shows featuring Marvel characters. Disney's related diversification strategy has helped the company achieve synergies between its various business units, allowing for cross-promotion and cross-selling opportunities.
Furthermore, Disney's related diversification has also enabled it to leverage its technological capabilities and adapt to the changing media landscape. With the launch of its streaming service, Disney+, in 2019, the company capitalized on its vast library of content and created a direct-to-consumer platform to compete in the growing digital entertainment market. This move not only expanded Disney's reach to a global audience but also provided a new avenue for monetization and reduced its reliance on traditional distribution channels.
In summary, Disney's successful use of related diversification has allowed the company to create value by expanding into new markets, capitalizing on its existing brand and intellectual properties, and leveraging its technological capabilities. By strategically entering complementary industries and extending its reach to a diverse consumer base, Disney has been able to generate revenue growth, enhance its competitive position, and build a strong ecosystem of interconnected businesses.
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A laser pointer in the shape of a cylinder is 13 centimeters long with a radius of 1 centimeter. On top, it has a cone-shaped tip with a height of 3 centimeters. What is the volume of the laser pointer in terms of π?
Answers
Answer:13*pi+pi-----> 14*pi cm³
Step-by-step explanation:
We know that
volume of a cylinder=pi*r²*h
where
h=13 cm
r=1 cm
volume of a cylinder=pi*1²*13----> 13*pi cm³
volume of a cone=(1/3)*pi*r²*h
where
r=1 cm
h=3 cm
volume of a cone=(1/3)*pi*1²*3-----> pi cm³
volume of the laser pointer=13*pi+pi-----> 14*pi cm³
Hope this helps:)
You ask 60 of your classmates if they have any siblings. Complete the two-way frequency table to show the results of the survey.
Answers
Answer:
25 girls says Yes. 10 boys say No. 30 total Students say No. 45 girls total. with a total of 60 Students
I really need help with this could someone explain it and help me?
Answers
Answer:
x = 103°
y = 31°
Step-by-step explanation:
Here we have two parallel lines cut by a transversal. X is equal to the angle above 77° and is also supplementary to 77°. This means that the total of x and 77° are equal to 180°.
1. x + 77° = 180°
2. x = 103°
Now that we have x, we can solve y. (5y - 52)° is equal to x (103°). Using this information, we can solve the value of y.
1. 5y - 52° = 103°
2. 5y = 155°
3. y = 31°
The dimension of the row space of a 3 x 3 matrix A is 2. (a) What is the dimension of the column space of A? (b) What is the rank of A? (c) What is the nullity of A? (d) What is the dimension of the solution space of the homogeneous system Ax = 0?
Answers
a) the dimension of its column space is also 2. b) the rank of A is 2. c) the nullity of matrix A is 1. d) the dimension of the solution space of the homogeneous system \(A_x = 0\) is also 1.
(a) The dimension of the row space of a matrix is equal to the dimension of its column space. So, if the dimension of the row space of matrix A is 2, then the dimension of its column space is also 2.
(b) The rank of a matrix is defined as the maximum number of linearly independent rows or columns in the matrix. Since the dimension of the row space of matrix A is 2, the rank of A is also 2.
(c) The nullity of a matrix is defined as the dimension of the null space, which is the set of all solutions to the homogeneous equation Ax = 0. In this case, the matrix A is a 3 x 3 matrix, so the nullity can be calculated using the formula:
nullity = number of columns - rank
nullity = 3 - 2 = 1
Therefore, the nullity of matrix A is 1.
(d) The dimension of the solution space of the homogeneous system Ax = 0 is equal to the nullity of the matrix A. In this case, we have already determined that the nullity of matrix A is 1. Therefore, the dimension of the solution space of the homogeneous system \(A_x = 0\) is also 1.
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HELPPPPPPPPPPPPPPPP PLEASEEEEE HELPPP
Answers
Answer:
A
Step-by-step explanation:
Answer:
The answer is D or 32oz for $3.00
Step-by-step explanation:
You're trying to find how much it cost for just 1 ounce so divide the price by the ounces:
a. $ 1.25 ÷ 12 = $ .104 per ounce
b. $ 1.65 ÷ 16 = $ .103 per ounce
c. $ 2.15 ÷ 20 = $ .1075 per ounce
d. $ 3.00 ÷ 32 = $ .09375 per ounce
Option D is the cheapest per ounce of all four choices!
Hope this helped
solve this 2 step equation
b/9 -34 < -36