If the standard deviation of a data set was originally 5, and if each value in the data set was multiplied by 4.8, what would be the standard deviation of the resulting data?

Q: After entering the test scores from her Statistics class of 25 students, the instructor calculated…

A: IQR is obtained as the difference between the third and first quartiles.

Q: a successful basketball player has a height of 6 feet 9 inches, or 206 cm. Based on statistics from…

A: Given,           Z -score=4.45           A basket ball player has a height of  6 feet 9…

Q: A student obtained the mean and standard deviation of 100 observations as 40 and 5.1 respectively.…

A: The original mean is 40 and original standard deviation is 5.1 Student wrongly copied one…

Q: An auditor finds that the values of a corporation’s accounts receivable have a mean of $295 and a…

A: Normal Distribution: A continuous random variable X is said to follow Normal distribution with…

Q: A successful basketball player has a height of 6 feet 2 ​inches, or 188 cm. Based on statistics from…

A: Given the Z score of height of basket ball player is 1.95. The original height of the basket ball…

Q: A successful basketball player has a height of 6 feet 8 ​inches, or 203 cm. Based on statistics from…

A: Consider X is a random variable defined as the height of a successful basketball player.The provided…

Q: A history class has 95 members. If there is a 22% absentee rate per class meeting , find the mean…

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Q: If the mean of a list of numbers is 16.7 and the standard deviation is 0,

A: Mean is a measure of central tendency. It is one of the most important measures to find out around…

Q: Suppose you have a data set of size 26, with mean 50 and standard deviation 8. If you subtract 8…

A: Size of the data set is 26, with mean 50 and standard deviation 8. A value of 8 is subtracted from…

Q: Both data sets have a mean of 175. One has a standard deviation of 16, and the other has a standard…

A: The stem-and-leaf plots are given and the one has a standard deviation of 16 and other has a…

Q: What is the Z value for a value of X = 60?

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Q: If the mean of the number of sales of houses is fifty-six, and the standard deviation is thirty-six,…

A: We have given, The mean number of sales of houses is x¯=56. And the standard deviation is σ=36.

Q: Suppose that the mean of a set of data is 50.2 and the standard deviation is 4.2.  Assume that the…

A: Given  μ=50.2, σ=4.2, h=5.1  We want to find the new mean and standard deviation.

Q: The mean and standard deviations of 200 items are found to be 60 and 20 respectively . But at the…

A: Given No. of items = 200 Wrong mean, x¯=60Wrong sd, s=20Correct value=18,17Incorrect value=3, 67

Q: If a variable has a mean of 53, a median of 62, and a standard deviation of 4, What is its skewness?

A: The formula to find skewness is given below:

Q: A value of 104.2 would be how many standard deviations above the mean, given a mean of 100, and a…

A: Solution: From the given information, µ=100 and a standard deviation σ=5.6.

Q: Which of the following would be the most reasonable estimate for the weight of house cats?  (The…

A: # To estimate the weight of house cat in U.S A

Q: Both data sets have a mean of 165. One has a standard deviation of 16, and the other has a standard…

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Q: Each of the variables displayed in the histograms below has a mean of 14.5, a range of 8, and 59…

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Q: Consider the following data: 2, 9, 5, 11, 7, 3. a. Calculate its mean and variance. b. If…

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Q: A sample has a mean of M = 50. If one new person is added to this sample, what effect will this have…

A: The sample mean is defined as M = Σx/n, where the value of observation is x and n is the total…

Q: Write down the formulas for the standard deviation of p.

A: Let sample size = n Sample proportion = p̄

Q: If the coefficient of variation for a data is given as  35%, and the standard deviation for the same…

A: Given that Coefficient of variation, C.V =  35% And the standard deviation is SD = 32

Q: A successful basketball player has a height of 6 feet 3 ​inches, or 191 cm. Based on statistics from…

A: Given,a basketball player has a height of 6 feet 3 inchesand the Z-score =2.31

Q: Find the standard deviation for this data set. if a one goal hockey game was added to this data set,…

A: From the plot representing the number of goals scored per game, there are three games in which three…

Q: Suppose a class average on a test is 75 and the standard deviation is 10. if joe scores 80 on the…

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Q: If the standard deviation of a sample is 4.3 for 28 data values, what would the standard deviation…

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