Please answer this for 25 points! I will give brainlyest too!

The statements second, Third and Fifth are correct statement related probabilities. which represent the 0.25 indicates an unlikely event and

0.75 indicates a likely event and 0.5 indicates equally likely to occur or not occur.

According to the statement

we have given that the some points related the probability and we ahve to express the correct statement and explain them.

So, We know that the

Probability is a the chance that a given event will occur.

And we know that the

You might split the likelihood in some notorious outcomes:

0: impossible (the event will never happen)

Close to zero (about 0 - 0.3): unlikely (the chances are small)

0.5: even (equal chances of happening and not happening)

Close to 1 (about 0.7 - 1): likely (the changes are large)

1: certain (it is 100% sure that the event will happen)

This means that:

first statement, 0 indicates a certain event, is incorrect.

0.25 indicates an unlikely event (second statement is correct)

0.75 indicates a likely event (third statement is correct)

fourth statement is incorrect (1 does not indicate an impossible event, but a certain event)

0.5 indicates equally likely to occur or not occur (fith statement is correct).

So, The statements second, Third and Fifth are correct statement related probabilities. which represent the 0.25 indicates an unlikely event and

0.75 indicates a likely event and 0.5 indicates equally likely to occur or not occur.

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Question:

Given that the Probability of a chance event is a number between zero and one that expresses the likelihood of the event occurring, choose all that are correct.

•0 indicates a certain event

•0.25 indicates an unlikely event

•0.75 indicates a likely event

•1 indicates an impossible event

•0.5 indicates equally likely to occur or not occur.

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(0.82 , 3.38) is estimate of the population mean weight loss for this diet in standard deviation.

What is standard deviation in math?

mean weight loss = 2.1lb

standard deviation = 4.8lb

sample size n = 40

std error = stdev/sqrt(n) = 4.8/sqrt(40) = 0.76

degrees of freedom = n - 1 = 39

critical value for alpha 0.10 and df 39 = +1.68

margin of error = critical value * std error = +1.68 * 0.76 = +1.28

confidence interval = sample mean + margin of error = 2.1 +1.28 = (0.82 , 3.38)

Yes it is effective since the values > 0mean weight loss = 2.1lb

standard deviation = 4.8lb

sample size n = 40

std error = stdev/sqrt(n) = 4.8/sqrt(40) = 0.76

degrees of freedom = n - 1 = 39

critical value for alpha 0.10 and df 39 = +1.68

margin of error = critical value * std error = +1.68 * 0.76 = +1.28

confidence interval = sample mean + margin of error = 2.1 +1.28 = (0.82 , 3.38)

Yes it is effective since the values > 0

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The molarity of the KOH solution is 0.4558 M for a 50 mL sample of KOH that is titrated with a 0.8186 M HCl solution. Also given that the titration requires 27.87 mL of HCl solution to reach equivalence point.

In this problem, we are given a 50.0 mL sample of KOH that is titrated with a 0.8186 M HCl solution. The titration requires 27.87 mL of the HCl solution to reach the equivalence point. To find the molarity of the KOH solution, we need to use the definition of molarity, which is the number of moles of solute per liter of solution.
First, we need to calculate the number of moles of HCl that reacted with the KOH. We can do this using the titration equation:
moles HCl = molarity of HCl x volume of HCl used
moles HCl = 0.8186 M x 0.02787 L
moles HCl = 0.02279 mol
Since KOH and HCl react in a 1:1 ratio according to the balanced equation, the number of moles of KOH in the sample is also 0.02279 mol.
Next, we can use the volume and concentration of the KOH sample to calculate its molarity:
molarity of KOH = moles KOH / volume of KOH sample (in L)
volume of KOH sample = 50.0 mL = 0.0500 L
molarity of KOH = 0.02279 mol / 0.0500 L
molarity of KOH = 0.4558 M
Therefore, the molarity of the KOH solution is 0.4558 M.

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Answer:

y=3/2x-5/2

Step-by-step explanation:

subtract the 3x from both sides and then divide everything by -2.

The hypotheses for the test are H₀: σ₁² = σ₂² and H₁: σ₁² ≠ σ₂². This is a two-tailed test to assess if there is a difference in the standard deviations of sound levels between the areas designated as "casualty doors" and operating theaters. The claim being investigated is whether or not there is a difference in the standard deviations.

The hypotheses for the test are:

H₀: σ₁² = σ₂² (There is no difference in the standard deviations of the sound levels between the areas designated as "casualty doors" and operating theaters.)

H₁: σ₁² ≠ σ₂² (There is a difference in the standard deviations of the sound levels between the areas designated as "casualty doors" and operating theaters.)

This hypothesis test is a two-tailed test because the alternative hypothesis is not specifying a direction of difference.

To substantiate the claim that there is a difference in the standard deviations, we will conduct a two-sample F-test at a significance level of 0.10, comparing the variances of the two groups.

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Answer:

-1

Step-by-step explanation:

(9 divided by 3) + 4 (6 - 7) =

(9 ÷ 3) + 4 (6 - 7) =

( 3 ) + 4 ( -1 ) =               Multiply 4 by -1

( 3 )  ( -4 ) =                   Subtract

-1

The CPI uses data from the Consumer Expenditure (CE) survey to determine the weights of the different categories of goods and services in the CPI. The CE survey collects data on the out-of-pocket expenses spent to acquire all consumer products and services.

CPI price data are collected via two surveys: one survey collects prices for commodities and services and the other survey collects prices for rent. The CPI survey collects about 94,000 prices per month to compute indexes for commodities and services.

The U.S. Consumer Price Index (CPI) is a collection of consumer price indices determined by the U.S. Bureau of Labor Statistics (BLS). To be specific, the BLS routinely calculates many distinctive CPIs that is practiced for several purposes.

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The given question is incomplete, So, take the similar question:

How does the Bureau of Labor Statistics calculate the CPI?

Answer:

y=-1/5x+6

Step-by-step explanation:

y-b=m(x-a)

×5) y-7=-1/5(x--5) (×5

5y-35=-1(x+5)

5y-35=-x-5

5y=-x+30

y=-1/5x+6

Answer:

y=-1/5x+6

Step-by-step explanation:

It will take 6 month to reach the same height for both maple tree and oak tree.

the country, region, or geographic area's yearly average rate of change in population size over a certain time period.

The given data is -

Let the number of months when both will have the same height be 'x'.

Thus,

For maple tree,the final height be-

125 + 3x

For oak tree,the final height be-

83 + 10x

Equating both

125 + 3x = 83 + 10x

7x = 125 - 83

7x = 42

x = 6 months

Thus, it will take 6 month to reach the same height for both maple tree and oak tree.

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Answer:

C

Step-by-step explanation:

The coefficient of x¹⁰ in (1 × x × x² × x³ × …)ⁿ is 1 for n=5 and n=10. For other values of n, the coefficient of x^10 will be 0, as there are no other possible combinations to achieve x¹⁰.

To find the coefficient of x¹⁰ in (1 × x × x² × x³ × …)ⁿ, you need to determine the possible ways to select terms from the sequence (1 × x × x² × x³ × …) such that their product is x¹⁰ and there are n terms.

Let's consider the following possible combinations of terms that can result in x^10:

1. x × x² × x² × x² × x³ (Here, n=5)
2. x² × x² × x² × x² × x² (Here, n=10)

These are the only two combinations that result in x¹⁰, assuming all powers of x are positive. For the first combination, there is only one way to select the terms, so the coefficient is 1. For the second combination, since all terms are the same, there is also only one way to select the terms, so the coefficient is 1.

Therefore, the coefficient of x¹⁰ in (1 × x × x² × x³ × …)ⁿ is 1 for n=5 and n=10. For other values of n, the coefficient of x^10 will be 0, as there are no other possible combinations to achieve x¹⁰.

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The coefficient of x¹⁰ in (1 × x × x² × x³ × …)ⁿ is 1 for n=5 and n=10. For other values of n, the coefficient of x^10 will be 0, as there are no other possible combinations to achieve x¹⁰.

To find the coefficient of x¹⁰ in (1 × x × x² × x³ × …)ⁿ, you need to determine the possible ways to select terms from the sequence (1 × x × x² × x³ × …) such that their product is x¹⁰ and there are n terms.

Let's consider the following possible combinations of terms that can result in x^10:

1. x × x² × x² × x² × x³ (Here, n=5)
2. x² × x² × x² × x² × x² (Here, n=10)

These are the only two combinations that result in x¹⁰, assuming all powers of x are positive. For the first combination, there is only one way to select the terms, so the coefficient is 1. For the second combination, since all terms are the same, there is also only one way to select the terms, so the coefficient is 1.

Therefore, the coefficient of x¹⁰ in (1 × x × x² × x³ × …)ⁿ is 1 for n=5 and n=10. For other values of n, the coefficient of x^10 will be 0, as there are no other possible combinations to achieve x¹⁰.

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0.07

Explanation:

The number of sophmores is 2+25+3 = 30.

Of these sophmores, 2 drive to school.

So the probability that a student drives to school, given that they are a sophmore, is 2/30, or approximately 0.07.

The range for the rod will be  11.218  - 11.812 feet

Given,

A factory has a machine that makes steel rods. The length of the rods that the machine makes feet.

Mean, μ = 11.5 feet

Standard deviation, σ = 0.3

The factory manager does not want to use the rods from the bottom 20% and the top 15%.

We have to find the length of the rods that the machine makes follows a normal distribution curve.

Here,

The factory manager doesn't want percentile 0-20 and percentile 85-100.

Here,

We have to know the z score of percentile 20 and 85.  

Z-score of percentile 20 is -0.94, then the calculation will be :  

x=  11.5 feet+ 0.3 feet × z-score  

x=  11.5 feet+ 0.3 feet × (-0.94)

x=  11.5 feet-  0.282 feet

x=  11.218 feet  

Z-score of percentile 85 is +1.04 then the calculation will be :  

x=  11.5 feet+ 0.3 feet × z-score  

x=  11.5 feet+ 0.3 feet × 1.04

x=  11.5 feet+ 0.312 feet  

x=  11.812 feet

Therefore,

The range for the rod will be  11.218  - 11.812 feet

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Answer:

200 tickets.

Step-by-step explanation:

Set the equation. Let the variable t = tickets:

6t + 300 = 1500

To break down the equation:

6t → Remember, t is the variable denoting tickets. Each ticket costs $6, therefore, you multiply the amount of tickets (t) with the cost (6): 6t

300 → The choir had already sold $300 worth of tickets. This amount will not change.

1500 → The amount the choir needs to go to New York.

Solve. Note the equal sign, what you do to one side, you do to the other. Do the opposite of PEMDAS.

PEMADS is the order of operation, and equals:

Parenthesis

Exponents (& Roots)

Multiplication

Division

Addition

Subtraction

~

First, Subtract 300 from both sides:

6t + 300 = 1500

6t + 300 (-300) = 1500 (-300)

6t = 1500 - 300

6t = 1200

Next, divide 6 from both sides:

(6t)/6 = (1200)/6

t = 1200/6

t = 200

200 tickets more is your answer.

~

An equation to represent the total number of pounds will be this:

Total number of pounds, T = 12p

An equation is a mathematical expression that shows how two statements are equal to each other. In this equation, we are told that the number of bags that were ordered for mulch was 12 bags. If one of the bags weighs p pounds, then the logical statement for the weight of 12 bags will be 12 multiplied by the weight of a unit bag.

We can decide to sum up the weight of the individual bags or simply multiply the number of the bags by the weight of each bag. So, the mathematical equation above is right.

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Answer:

-2

Step-by-step explanation:

-3+2=-1

-1+4=3

3-5=-2

Answer:

The answer to this in simplest radical form is 4160 2/9.

This method works because it uses the right triangle theorem.

Triangle is a three-sided polygon that has three vertices and three angles. It is one of the basic shapes in geometry. A triangle with all sides equal is called an equilateral triangle, one with two sides equal is called an isosceles triangle, and one with all sides of different lengths is called a scalene triangle. Triangles are used in many fields, including engineering, architecture, and art.

The right angle of the triangle is formed by the line of sight from your eye to the balloon, and the two sides of the triangle are formed by the ground to your eye measurement and the distance from you to the gym wall. By multiplying the two measurements, you can estimate the height of the balloon from the ground.

This measuring method is simple and easy to use. All that is needed is a cardboard square, a tape measure, and a friend to help. It is also accurate since it uses the right triangle theorem. However, it is only an estimate of the true distance from the ground to the balloon. To get a more precise measurement, the angles of the triangle should be calculated and the measurements should be taken from two or three different points.

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Answer:

0.15 or 15%

Step-by-step explanation:

Since lengths are uniformly distributed, the probability that a class period runs between a two exact times is:

\(P(x_1\leq x \leq x_2)=\frac{x_2-x_1}{b-a}\)

In this case, a = 47.0 and b = 52.0 minutes.

The probability that a given class period runs between 50.25 and 51.0 minutes is:

\(P(50.25\leq x \leq 51.0)=\frac{51.0-50.25}{52-47} \\P(50.25\leq x \leq 51.0)=0.15=15\%\)

The probability is 0.15 or 15%.

Corrine Brown received 66,738 votes, and Bill Randall received 53,141 votes in the recent election.

In the recent election, Corrine Brown received 13,597 more votes than Bill Randall, and the total number of votes was 119,879. To find the number of votes for each candidate, follow these steps:

1. Let the number of votes for Corrine Brown be C and the number of votes for Bill Randall be B.
2. According to the problem, C = B + 13,597.
3. Also, the total number of votes is the sum of the votes for both candidates, so C + B = 119,879.
4. Substitute the expression from step 2 into step 3: (B + 13,597) + B = 119,879.
5. Combine the like terms: 2B + 13,597 = 119,879.
6. Subtract 13,597 from both sides of the equation: 2B = 106,282.
7. Divide both sides by 2 to solve for B: B = 53,141.

Now that we have the number of votes for Bill Randall (53,141), we can find the number of votes for Corrine Brown using the equation from step 2:

C = B + 13,597
C = 53,141 + 13,597
C = 66,738

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Answer:

Step-by-step explanation:

Given function

Values as per table:

#9

#a

\(\\ \sf\longmapsto (y+2z)^3\)

\(\\ \sf\longmapsto y^3+2z^3+3y^2(2z)+3y(2z)^2\)

\(\\ \sf\longmapsto y^3+8z^3+6y^2z+12yz^2\)

#b

Refer to attachment

#10

Answer:

38π

Step-by-step explanation:

The circumference of a circle is calculated by multiplying the diameter of a circle by π. The radius is half of the diameter. So 19 x 2 = 38. 38π

For radius of a circle 19 in. its circumference in terms of π is,

⇒  38π inch

We have to given that;

The radius of a circle is 19 in.

Now, We know that;

Circumference of circle = 2πr

Where, 'r' is radius.

Here, r = 19 in.

Hence, The value of Circumference of circle is,

= 2πr

= 2π × 19

= 38π inch

Thus, For radius of a circle 19 in. its circumference in terms of π is,

⇒  38π inch

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Answer: x∈(-∞,-2√6-2)U(2√6-2,+∞)

Step-by-step explanation:

\(\displaystyle\\y=\frac{1}{4} (x+2)^2-6\\y > 0\\Hence,\\\frac{1}{4}(x+2)^2-6 > 0 \\\\\frac{1}{4}(x+2)^2-6+6 > 0+6\\\\\frac{1}{4}(x+2)^2 > 6\\\)

Multiply both parts of the equation by 4:

\((x+2)^2 > 24\)

Extract the square root of both parts of the inequality:

\(|x+2| > \sqrt{24} \\|x+2| > \sqrt{4*6} \\|x+2| > 2\sqrt{6}\)

Expand the modulus - we get a set of inequalities:

\(\displaystyle\\\left [{{x+2 > 2\sqrt{6}\ \ \ \ (1) } \atop {-(x+2) > 2\sqrt{6} \ \ \ (2)}} \right.\\\)

Multiply both parts of inequality (2) by -1 and reverse the sign of the inequality:

\(\displaystyle\\\left [ {{x+2-2 > 2\sqrt{6}-2 } \atop {x+2 < -2\sqrt{6} }} \right. \ \ \ \ \ \left [ {{x > 2\sqrt{6}-2 } \atop {x+2-2 < -2\sqrt{6} -2}} \right. \ \ \ \ \ \left [ {{x > 2\sqrt{6}-2 } \atop {x < -2\sqrt{6}-2 }} \right.\)

Thus,

\(x\in(-\infty,-2\sqrt{6}-2)U(2\sqrt{6} -2,+\infty)\)

keeping in mind that "y = some number" is always a horizontal line, y = 0 is just another way to say the x-axis, Check the picture below.

Using the double-angle formula for sine, the expression 5 sin x cos x can be rewritten as 2sin(2x).

Step 1: The double-angle formula for sine states that sin(2u) = 2sin(u)cos(u).

Step 2: In this case, we substitute u with x. Therefore, sin(2x)

= 2sin(x)cos(x).

By applying the double-angle formula for sine, the expression 5 sin x cos x can be rewritten as 2sin(2x).

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Answer:

the nearest thousand for 1700 is 2000

Step-by-step explanation:

Answer:

5:05 pm

Step-by-step explanation:

6:30 pm - 1:25 = 5:05 pm

spended= hour 25 minutes

left= 6:30 PM

the time he went to the library.

to find the time he went to the library just find the difference.

\(1830 \: hours - 1 \: hr \: 25 \: min\)

\( = 1705 \: hours\)

therefore, he went to the library at 05:05 PM.

Respuesta:

$ 9666. 67

Explicación paso a paso:

Costo de TV = $ 76,000

Número de cuotas = 3

Monto ya pagado = $ 47000

Amontof cada cuota fija = Cantidad que queda por pagar / 3

Cantidad que queda por pagar = Costo de TV - Cantidad ya pagada

Cantidad que queda por pagar = $ (76000 - 47000) = $ 29000

Monto de cada cuota fija = $ 29000/3 = $ 9666. 67

Answer:

36

Step-by-step explanation:

Basically it is = 9 x 4

Multiply the numbers

= 9 ⋅ 4

= 36

Solution = 36

aka

y = 36