Answer:
correct answer is A. because the square root of 122 is 11.06 which means its between 11 and 12, not 10 and 11
Step-by-step explanation:
Given Event A, Event B, and Event C. Event A and Event B are mutually exclusive. Event A and Event C are not mutually exclusive. P(A)
The probability of Event A (P(A)) is equal to 1. the probability of the union of two mutually exclusive events is the sum of their individual probabilities.
Given that Event A and Event B are mutually exclusive, it means that they cannot occur simultaneously. In other words, if Event A happens, then Event B cannot happen, and vice versa. Mathematically, the probability of the union of two mutually exclusive events is the sum of their individual probabilities.
Let's denote P(A) as the probability of Event A occurring.
Since Event A and Event B are mutually exclusive, we can say that P(A ∪ B) = P(A) + P(B) = 1. Since the probability of the sample space is always 1, and P(B) = 0 (since Event B cannot occur if Event A has occurred), we can simplify the equation:
P(A) + 0 = 1
P(A) = 1
Therefore, the probability of Event A (P(A)) is equal to 1.
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Points P(-2,-8) and Q(1, 1) lie on the graph if y = 3x - 2. Which of the following points is
collinear with P and Q?
A(-3,7)
B(9,9)
C(-4,14)
D(2,8)
. A realtor's website provides information on area homes that are for sale. Identify each of the variables as either categorical or quantitative. a. List price: amount, in thousands of dollars, for which the house is being sold. b. School District: the school district in which the home is located. c. Size: in square feet d. Style: the style of home (ranch, Cape Cod, Victorian, etc.) 2. What are the cases in the realtor's dataset?
The cases in the realtor's dataset would be the individual homes listed for sale on the website. Each case represents a specific home and its corresponding information, including the list price, school district, size, and style.
a. List price: quantitative (continuous) - This variable represents the numerical value of the amount, in thousands of dollars, for which the house is being sold. It is a quantitative variable because it can take on a range of numerical values.
b. School District: categorical - This variable represents the school district in which the home is located. It is categorical because it represents different categories or groups (school districts) rather than numerical values.
c. Size: quantitative (continuous) - This variable represents the size of the home in square feet. It is a quantitative variable because it can take on numerical values and can be measured on a continuous scale.
d. Style: categorical - This variable represents the style of the home, such as ranch, Cape Cod, Victorian, etc. It is categorical because it represents different categories or groups (home styles) rather than numerical values.
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What describes all decimals that are rational numbers
PLEASE ANSWER
Micaela is searching for the best spot to plant her tomato plants. The east side of her house gets 6 hours and 45 minutes of sunlight each day. The west side receives 7 hours and 15 minutes of sunlight on a daily basis. How much less sunlight does the east side receive?
Keep in mind that there are 60 minutes in 1 hour.
Answer:
420 + 15 = 435
360 + 45 = 405
435 - 405 = 30.
30 minutes less sunlight
Step-by-step explanation:
Answer:
The east side gets 30 minutes less sunlight.
Step-by-step explanation:
To find the answer we have to subtract 6 hours 45 minutes from 7 hours 15 minutes. As we see that 15 is less than 45, we turn 7 hours 15 minutes to 6 hours 75 minutes, and now we can subtract. 6 hours 75 minutes - 6 hours 45 minutes = 30 minutes. Now, we see that the answer is 30 minutes less sunlight.
comparing descriptive statistics for numeric fields within the data is an example of which of the following?
Comparing descriptive statistics for numeric fields within the data is an example of quantitative analysis.
This type of analysis involves the use of numerical data to draw conclusions and make decisions. Descriptive statistics, such as measures of central tendency and variability, provide a summary of the data and can be used to identify patterns or trends. By comparing these statistics across different variables, researchers can gain insights into relationships between variables and make predictions about future outcomes. Overall, quantitative analysis is an important tool for understanding and interpreting complex data sets. Comparing descriptive statistics for numeric fields within the data is an example of "Exploratory Data Analysis (EDA)." EDA involves summarizing, visualizing, and analyzing datasets to extract meaningful insights and understand underlying patterns or trends. This process helps in making informed decisions and supports further statistical or predictive modeling.
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find the z value for 0.99 if e O¨zlem likes jogging 3 days of a week. She prefers to jog 3 miles. For her 95 times, the mean wasx¼ 24 minutes and the standard deviation was S¼2.30 minutes. Let μ be the mean jogging time for the entire distribution of O¨zlem’s 3 miles running times over the past several years. How can we find a 0.99 confidence interval for μ?.
likes jogging 3 days of a week. She prefers to jog 3 miles. For her 95 times, the mean wasx¼ 24 minutes and the standard deviation was S¼2.30 minutes. Let μ be the mean jogging time for the entire distribution of O¨zlem’s 3 miles running times over the past several years. How can we find a 0.99 confidence interval for μ
a) What is the table value of Z for 0.99? (Z0.99)? (b) What can we use for σ ? (sample size is large) (c) What is the value of? Zcσffiffin p (d) Determine the confidence interval level for μ.
a. The table value of z 0.99 is given as 2.58.
b. we use σ = 2.30 minutes.
c. The value of Z is given as 0.609.
d. The confidence interval is (23.391, 24.609) minutes.
How to solve for the z critical valuea) To find the z-score for a 0.99 confidence interval, we need to find the z-score that leaves 0.5% (since it's two-tailed, we split the 1% or 0.01 of the data that's not within the confidence interval into two) in each tail. The z-score for 0.995 (0.5% in the upper tail) is approximately 2.58 in standard normal distribution tables. So, Z_0.99 is 2.58.
b) Therefore, we use σ = 2.30 minutes.
c) The standard error of the mean (SE) is given by σ/√n, where n is the sample size.
Here, σ = 2.30 minutes and n = 95.
Therefore, SE = σ/√n
= 2.30/√95
= 0.236 minutes.
Multiply this by the z-score to find Z * σ/√n.
Therefore, Z * σ/√n = 2.58 * 0.236 ≈ 0.609.
d) The 0.99 confidence interval for μ
Here, x is the sample mean which is 24 minutes.
So the confidence interval is approximately
= (24 - 0.609, 24 + 0.609)
= (23.391, 24.609) minutes.
This is the range of values we are 99% confident that the true population mean (μ) falls in.
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y = − 16/1225x^2+ 7/5x+3/2
How high is the ball when it is punted? (Hint: Find y when x = 0.)
ft
(c) What is the maximum height of the football? (Round your answer to two decimal places)
ft
(d) How far from the punter does the football strike the ground? (Round your answer to two decimal places.)
ft from the punter
divide 6q by q please solve this and help me to get out of this
Step-by-step explanation:
the answer is 6
please mark me brainliest
Answer:
\( \frac{6q}{q} \\ \frac{6 \times q}{q} \\ when \: q \: is \: divided \: by \: q \: then \: the \: remainder \: is \: 1 \\ 6 \times 1 \\ 6\)
For each Diagram, write an unsimplified and simplified equation that represents the relationship between x and y.
I need the unsimplified equations on the left side of the chart from what I know it should be equal to the simplified equation across from it.
For diagram A, the unsimplified equation represents the relationship between x and y is y = x + x/3.
For diagram B, the unsimplified equation represents the relationship between x and y is y = x + 2x/3.
For diagram C, the unsimplified equation represents the relationship between x and y is y = x - x/3.
For diagram D, the unsimplified equation represents the relationship between x and y is y = x - 2x/3.
What is an unsimplified equation?Performing mathematical operations reduces an unsimplified equation to a simplified equation. A simplified equation is used for convenience.
Diagram A:
The value of x contains 3 congruent colored rectangles. The noncolored rectangle is 1. So, the value of the noncolored rectangle will be x/3.
Clearly, y will be the sum of x and x/3, that is, y = x + x/3.
Therefore, the obtained answer is y = x + x/3.
Diagram B:
The value of x contains 3 congruent colored rectangles. The noncolored congruent rectangles are 2. So, the value of the noncolored rectangles will be 2x/3.
Clearly, y will be the sum of x and 2x/3, that is, y = x + 2x/3.
Therefore, the obtained answer is y = x + 2x/3.
Diagram C:
The value of x contains 3 congruent colored rectangles. So, the value of 1 rectangle will be x/3.
Clearly, y will be the difference between x and x/3, that is, y = x - x/3.
Therefore, the obtained answer is y = x - x/3.
Diagram D:
The value of x contains 3 congruent colored rectangles. So, the value of 2 congruent rectangles will be 2x/3.
Clearly, y will be the difference between x and 2x/3, that is, y = x - 2x/3.
Therefore, the obtained answer is y = x - 2x/3.
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Explain how to determine the zeros of the function below, and also
identify the zeros of this function
Answer:
A function is shown. f(x) = x2 + 2x - 35 One of the zeros of the function is What is the other zero of the functions
3) To transmit information on the internet, large files are broken into packets of smaller sizes. Each packet has 1500 bytes of information. = An equation relating packets to bytes of information is given by b = 1500p where p represents the number of packets and b represents the number of bytes. How many packets would be needed to transmit 30000 bytes of information? Show your work using the equation. b = 1500p =
A population consists of 400 elements. We want to draw a simple random sample of 40 elements from this population. On the first selection, what is the probability of an element being selected? a. 0.001 b. 0.0025 c. 0.025 d. 0.1
The probability of an element being selected is 0.1
The probability of an element being selected on the first selection from a simple random sample of 40 elements from a population of 400 is 0.1
Explanation: Probability is a measure of how likely an event is to occur. It is represented by a number between 0 and 1, where 0 represents an impossible event and 1 represents a certain event.
Probability is used in statistical analysis to make predictions and draw conclusions about data.
In this question, the population consists of 400 elements, and a simple random sample of 40 elements is to be drawn from it.
The probability of an element being selected on the first selection is the same as the probability of any one of the 400 elements being selected, which is 1/400 or 0.0025.
Therefore, the correct answer is option (d) 0.1
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What is the probability of the spinner NOT landing on yellow?
оо
O 1/3
O 2/3
0 1
The three steps for constructing a simple frequency distribution are Group of answer choices find the observed range, find the interval width, and construct the frequency distribution find the real range, count the scores, and construct the frequency distribution find the real range, find the interval width, and construct the frequency distribution all of the above
The correct option is C. find the real range, find the interval width, and construct the frequency distribution.
What is frequency distribution?To make the information easier to understand, frequency distributions are textured look which organise and present frequency counts. Absolute frequencies as well as frequency distributions, such as percentages or ratios, can be displayed in frequency distributions.
The real range is find by the following method-
Range is referred to as the difference between both the lower limit of the minimal interval and the upper limit of the maximal interval of the grouped data in the case of a continuous frequency distribution. That is true for the following ranges for X: 0–10, 10–20, 20–30, and 40–50; 4–0=40.The interval width is find by the following method-
The distance between both the lowest endpoint of one interval as well as the lowest endpoint of the following interval is known as the class interval width. Therefore, if the continuous intervals in our study range 0 to 4, 5 through 9, etc., the very first five intervals' widths are 5 and the final interval is open because no larger endpoints is allocated to it.To know more about the frequency distribution table, here
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The correct question is-
The three steps for constructing a simple frequency distribution are -
Group of answer choices
A. find the observed range, find the interval width, and construct the frequency distribution
B. find the real range, count the scores, and construct the frequency distribution
C. find the real range, find the interval width, and construct the frequency distribution
D. all of the above
Each set of coordinates forms a rectangle. Find the length of the base and height. Find the area. Find the perimeter.
H(10,7) I(10,-4)
J(15,-4) K(15,7)
To find the length of the base and height, we need to find the difference in the x-coordinates and the y-coordinates of the opposite corners of the rectangle. The length of the base is found by subtracting the x-coordinate of point H from the x-coordinate of point J, which is 15 - 10 = 5. The height is found by subtracting the y-coordinate of point I from the y-coordinate of point K, which is 7 - (-4) = 11.
The area of the rectangle is found by multiplying the length of the base by the height, which is 5 * 11 = 55.
The perimeter of the rectangle is found by adding up the lengths of all four sides, which is 2 * (5 + 11) = 2 * 16 = 32.
Answer:
Given coordinates, the length of the base can be found by subtracting the x-coordinates of two opposite vertices. In this case, it would be (15 - 10) = 5 units.
The height can be found by subtracting the y-coordinates of two opposite vertices. In this case, it would be (7 - (-4)) = 11 units.
The area of a rectangle is found by multiplying the length and height. In this case, it would be 5 * 11 = 55 square units.
The perimeter of a rectangle is found by adding up the lengths of all four sides. In this case, it would be 2 * (5 + 11) = 32 units.
you fold the rectangular piece of paper. you notice that the line segments connecting the halfway points of opposite sides are perpendicular. for what other quadrilateral is this also true?
For squares, a quadrilateral, the line segments connecting the halfway points of opposite sides are perpendicular.
Line segments refer to lines joining two endpoints. It has a fixed length and a definite length, unlike ray and line.
A line is said to be perpendicular to another line if the two lines intersect at a right angle. It is represented by ⊥.
A quadrilateral is a 2-dimensional shape that has four sides and four angles. Examples include squares, rectangles, and so on.
The quadrilaterals Square and Rectangle are such that the line segments connecting the halfway points of opposite sides are perpendicular that is the angle of intersection is of the magnitude of 90°
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The answer step by step please
Answer:
f o g(x) = 3x - 7
Step-by-step explanation:
I have attached my work in the explanation.
In May, Ali was charging
$20 for individual
basketball lessons and in
August started charging
$25. What percent did
she increase her prices?
Answer:
25%
Step-by-step explanation:
25 - 20 = 5
20/4 = 5
100 / 4 = 25
Answer:
20+25%=25% Ali Has increased 25%
Two positive integers are 3 units apart on a number line. Their product is 108.
Which equation can be used to solve for m, the greater integer?
a). m(m – 3) = 108
b.) m(m + 3) = 108
c.) (m + 3)(m – 3) = 108
d.) (m – 12)(m – 9) = 108
Answer:
d) the numbers are 9 and 12
Step-by-step explanation:
set each factor equal to 108:
m-12=108
m = 120
*************
m-9=108
m=117
*************
120 and 117 are 3 units apart
****************
9 x 12 = 108
can i get some help please
Answer:
X=
Step-by-step explanation:
x-1= 4x+3x+x-8
x-1 = 8x-8
shift places
8-1= 8x-x
7x = 7
X=7/7
X=1
I think so
please mark this answer as brainlist
HELP ME PLEASE! I need help on Desmos!
Answer:
B is the answer :)
Step-by-step explanation:
A statistics professor wants to compare grades in two different classes of the same course. This is an example of a paired sample.
True or False
The given statement "A statistics professor wants to compare grades in two different classes of the same course" is True because this experimental design is useful in reducing the impact of extraneous variables and ensuring that the results are reliable and valid.
This is an example of a paired sample. A paired sample is a type of experimental design where each member of one group is matched with a member from the other group based on specific criteria. In this scenario, the statistics professor is comparing grades in two different classes of the same course. This means that each member of one group (class A) is matched with a member of the other group (class B) based on their enrollment in the same course.
Paired samples are often used in scientific research to eliminate the effects of extraneous variables that might affect the results of an experiment. By pairing individuals in two groups based on certain criteria, researchers can control for individual differences and test the effectiveness of different treatments or interventions more accurately.
In the case of the statistics professor, pairing the two classes of the same course is essential to ensure that any differences in grades between the two groups are not due to differences in the course content, teaching styles, or other factors that could influence the grades of the students.
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Which expressions are equivalent to 78 • 7? Select all that apply.
Answer:
B & C are the correct answers
\(b. \: \: \frac{7 {}^{18} }{7 {}^{9} } \\ c. \: \: (7 {}^{3} ) {}^{3} \\ e. \: \: 7 {}^{4} .7 {}^{5} \\ \\ correct \: answers\)
Thank you ☺️☺️
assume that blood pressure readings are normally distributed with a mean of 123 and a standard deviation of 9.6. if 144 people are randomly selected, find the probability that their mean blood pressure will be less than 125.
The probability that the mean blood pressure will be less than 125 is 0.9938
The mean of the pressure readings = 123
The standard deviation = 9.6
Total population = 144
The value is less than 125
The equation of the z-score is
z-score = (Observed value - Mean ) / (Standard deviation /\(\sqrt{N}\))
Substitute the values in the equation
z-score = (125 - 123) / (9.6/\(\sqrt{144}\))
= 2 / (9.6/12)
= 2 / 0.8
= 2.5
Using the statistical table
The probability of that their mean blood pressure less than 125
P(z < 2.5) = 0.9938
Therefore, the probability is 0.9938
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solve using substitution
-5x+7y=-5
y=-5
x=?
So if you solve for x using the first equation, you get: x = 5y - 5.
From there you can plug that into the second equation which would give you:
7y-5y+5=-23
Simplifying from that point, you get y = -9.
Now that you have one of the values, you can solve for x by plugging it back into the equation we made (x = 5y - 5) and getting to the answer x = -40.
A fish tank that holds 80 gallons of water is 55% full. How many
gallons are in the tank now? How many more gallons are needed to fill the
tank?
Answer:
44 gallons in tank now
36 more gallons needed
Step-by-step explanation:
55% of 80 = 44
-3/7 is greater than -2/5
Answer: False
Step-by-step explanation:
-3/7 roughly equals -0.428
-2/5 equals -0.4
-0.4>-0.428
-2/5>-3/7
If a customer service representative changes the way she envisions her job, from recording complaints from customers to being an advocate for customer rights, she engages in which form of job crafting
If a customer service representative changes the way she envisions her job, shifting from recording complaints to being an advocate for customer rights, she engages in the form of job crafting known as task crafting.
Job crafting involves employees making changes to their job roles or tasks to align them more closely with their values, strengths, and motivations. In this scenario, the customer service representative is redefining her role from simply recording complaints to actively advocating for customer rights.
This represents task crafting, where the employee modifies the tasks and responsibilities associated with their job.
By taking on the role of a customer rights advocate, the representative seeks to go beyond the traditional boundaries of their position and make a positive impact on customer experiences and satisfaction.
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One number is less than a second number. The first is more than times the second. Find the numbers. Be sure to show all work on your paper. The answer without work will receive zero credit.
Question: One number is one less than a second number. Twice the first is 4 more than 5 times the second. Find the numbers.
Answer:
The numbers are -3 and -2
Step-by-step explanation:
Given
Let the numbers be a and b
From the first statement:
\(a = b - 1\)
From the second:
\(2a = 4 + 5b\)
Required
Find a and b
Substitute b - 1 for a in the second equation
\(2(b-1) = 4 + 5b\)
\(2b-2 = 4 + 5b\)
Collect like terms
\(2b- 5b = 2+ 4\)
\(-3b = 6\)
\(b =-2\)
Recall that:
\(a = b - 1\)
\(a = -2 - 1\)
\(a =- 3\)