The arithmetic mean and the standard deviation of a set of 9 items are 43 and 5

Q: Would a person spending $476 on their car be considered usual or unusual if the amount spent by the…

A: Given information- Population mean µ = $347 Population standard deviation, σ = $39.58 Let, X be the…

Q: For a list of positive numbers, is it possible for the standard deviation to be greater than the…

A: Mean: The mean defines that the center or average of the data and it is calculated by the sum of the…

Q: Find the range and standard deviation of the set of data. 26, 18, 26, 18, 22

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Q: What

A: Explanation and solutions is given below....

Q: Find the mean and standard deviation for the numbers of sleepwalkers in groups of five.

A: Given: X P(x) 0 0.175 1 0.357 2 0.318 3 0.118 4 0.028 5 0.004

Q: Find the number of boys and the combined standard deviation

A: Given :  Our aim is to find the number of boys and combined standard deviation.

Q: Find the range and standard deviation of the set of data. 6,9,12,14,18,19

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Q: The Sum of Squared Errors for a data set of 18 numbers is 36. What is the standard deviation?

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Q: how do you find the standard deviation of 7.1 , 11.6, 8.1, and 13.4 ?

A: The standard deviation of a  data distribution tell us how deviated are the data points with respect…

Q: Seven students on an intramural team weigh 179 lb, 172 lb, 174 lb, 185 lb, 162 Ib, 181 Ib and 193…

A: According to the provided information, the sample weights are 179, 172, 174, 185, 162, 181, 193

Q: Find the range and standard deviation of the set of data. 15, 18, 12, 9, 12, 10, 15

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Q: Find the mean and standard deviation of the numbers below.  3 7 5 4 5 6 7 8 6 5

A: First of all, let's arrange the data in a particular order(ascending) for further calculation. i.e…

Q: Find the range and standard deviation of the set of data. 12, 8, 7, 11, 22 O

A: Given sample data is  12,8,7,11,22.

Q: In Pittsburgh, Pennsylvania, about 56% of the days in a year are cloudy. Find the mean, variance,…

A: Given, In a year 56% of days are cloudy. Now during June month 30 days. Each day is independent of…

Q: If Quiz A has a mean of 7.6 and a standard deviation of 2.0 and Quiz B has a mean of 7.9 and a…

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Q: Given a mean of 1,500 and a standard deviation of 53, calculate the value that is 2 standard…

A: Given that, Mean = 1500 Standard deviation = 53

Q: The final grades in a math class has a mean of 77 and a standard deviation of 9.77 if the professor…

A: Here we need to find the cutoff for A grade. Given that the top 10% are given A. We assume that the…

Q: How to find what numbers 89% lie between with a mean of 24 and a standard deviation of 4

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Q: Find the standard deviation. Round to one more place than the data. 6, 20, 18, 9, 15, 20, 18, 20, 8

A: We first find the mean by adding all the values and then dividing by the total number of elements.…

Q: 9) In a class of 30 students, how many students failed the test (below 64), if the mean grade on a…

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Q: The deviation of an entry x in a population data set is the difference between the entry and the…

A: Note: Hi there! Thank you for posting the question. It is considered that the deviation is taken…

Q: Find the range and standard deviation of the set of data.   10,9,6,12,18

A: The set of data 10,9,6,12,18

Q: A successful basketball player has a height of 6 feet 4​inches, or 193cm. Based on statistics from a…

A: The z-score identify that the value how many standard deviations from the mean. If the z-score is…

Q: The arithmetic mean and the standard deviation of a set of 9 items are 43 and 5 respectively . If an…

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Q: 6. Determine the Range and Standard Deviation of the set of data below. 60, 58, 62, 67, 48, S1, 72,…

A: From the given data

Q: How would you find the standard deviation by hand, of the following numbers: 1,1,3,01,6,2

A: Standard deviation:Standard deviation quantifies the dispersion of a data set from its mean. The…

Q: 2. In a departmental examination on statistics, the mean grade was 64 and the standard deviation was…

A: Determine the number of students took the examinations.   The number of students took the…

Q: Find the range and standard deviation of the set of data. 210, 215, 220, 225, 230, 235, 240

A: By using formulaes for range and standard deviation you can solve the given problem as follows :

Q: Find the standard deviation for the group of data items.   12​, 8​, 12​, 8​, 12​, 8​, 12​,

A: Tabulate the given values as x, and calculate the summation of x and x2. x x2 12 144 8 64…

Q: A population has µ = 50 and o - 5. If 10 points are added to every score in the population, what are…

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Q: In Pittsburgh, PA, about 56% of the days are cloudy. June, which has 30 days, is to be considered.…

A: Hey there! Thanks for posting the question. Your question has more than three sub-parts. However, we…

Q: Which set of scores has the smallest standard deviation? Set 1. 5,11,42,22 Set 2. 47,43,45,45 Set…

A: To compute the standard deviation, mean is required. Thus, the mean for the set 1 is:

Q: Calculate the mean if -2 standard deviation = 70 and +2 standard deviation = 100. The mean of the…

A: -2 standard deviation is given by, (Mu-2sigma)= 70  Mu+2sigma= 100 Where mu is mean and sigma is…

Q: Find the standard deviation. Round to more one more place then the data. 6, 20, 18, 9, 15, 20, 18,…

A: We find the mean first

Q: Find the standard deviation of the following -14, -4,-10, -12, 5, -1.

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Q: A population has a mean of μ and a standard deviation of  . a. If 3 points were added to every…

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Q: Calculate the standard deviation for the data set below 1, 3, 4. 5, 6, 9, 12, 16

A: Since you have asked multiple question, we will solve the first question for you. If you want any…

Q: The standard deviation of the given the data {14, 13, 16, 9, 3} is +

A: As per our guidelines we are suppose to answer only o ne question1)Given data set14,13,16,9,3sample…

Q: Find the mean, median, mode and standard deviation of 4,6,6,9 and 10

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Q: 4. Find the mean and the standard deviation of the following data set: 12, 15, 12, 19, 21, 11, 13,…

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Q: Which of the data sets shown below has the smallest standard deviation? 0, 1, 2, 3, 4, 5, 6 0, 0, 0,…

A: We have to find standrad deviation...

Q: Find the mean and standard deviation of the following numbers:  35,18,12,32,35,75,32,26,18

A: Obtain the value of the mean. The value of the mean is obtained below: Mean: From the information,…

Q: 4. Describe what happens to the mean, the standard deviation, and the shape of a distribution when…

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Q: Calculate the mean if -2 standard deviation = 70 and +2 standard deviation = 100. The mean of the…

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Q: Create a set of three numbers with a mean of 5 and a standard deviation of 5.

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Q: Find the standard deviation of the data set: 15, 42, 53, 7, 9, 12,14, 28,47. 16.78

A: Given data is ,15, 42, 53, 7, 9, 12, 14, 28, 47sample size(n)=9sample…

Q: The standard deviation of the dataset { 12, 7, 21, 5, 18 } is Select one: a. 6.88

A: Given data set, 12,7,21,5,18 Standard deviation is ?