17. Exams I, II, and III have mean results of 67, 72, and 76, respectively, and standard deviations of 11, 8, and 5, respectively. Mary takes exam I, John takes exam II, and Sarah takes exam III. They each score 83. Rank them from lowest to highest results according to z-scores. (A) John, Sarah, Mary (C) Mary, John, Sarah (B) John, Mary, Sarah (D) Mary, Sarah, John If you feel the answer is none of the choices given, submit no answer to the question.

Q: The standard deviation of (1,9,8,4) is approximately what?

A:

Q: For this set of data, the standard deviation (s) is equal to: 9, 8, 10, 5, 5, 2, 3, 6, 3

A: Mean:The formula for finding mean is shown below:

Q: Imagine that every elementary school in California is measured on several characteristics and then…

A:

Q: Imagine that every elementary school in California is measured on several characteristics and then…

A: For Carver:mean(μ)=10.1standard deviation(σ)=2.3and score (X)=13.2For Bryant:mean(μ)=9.8standard…

Q: 2. Write a paragraph that explains why "the z-score associated with the raw score of r; (i.e., ) is…

A: From the standard normal curve, The z-score of any raw data set provides the information about the…

Q: Number of Frogs Caught Daily Next to my House   29 23 14 13 23 22 16 24 27 25 26 19 21…

A: Standard Deviation (SD) : Standard deviation is used to explain how the data points are deviated…

Q: The following data represent the number of people aged 25 to 64 years covered by health insurance​…

A: Solution Age Number (f) Midpoint (x) f*x x2 f*x2 25-34 27.3 29.5 805.35 870.25 23757.825…

Q: 4.) Determine the range and Standard Deviation of the set of data 4, 8, 9, 11, 13, 15

A:

Q: 1. Find the Mean, Median, Mode, Variance and Standard Deviation for the following data: 25, 36, 28,…

A: Calculate Mean, Median, Mode, Sample Variance (S2), Sample Standard deviation (S) from the following…

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: 6.) The daily water usage per person in Davao City is normally distributed with a mean of 18 gallons…

A: The Z-score of a random variable X is defined as follows: Z = (X – µ)/σ. Here, µ and σ are the mean…

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: Suppose The total daily carbohydrate intake and for all boys age 13 and 15 years old in the US is…

A: Let x be the daily carbohydrate intake for all boys age 13 and 15 years old in the US which follows…

Q: What does Chebyshev’s rule say about the percentage of observations in any data set that lie within…

A:

Q: Data was collected on the number of television sets in a household, and it was found that the mean…

A: It is an important part of statistics. It is widely used.

Q: If the mean is seven and the standard deviation is two, what value is three standard deviations to…

A: It is given that the The mean is 7 and the standard deviation is 2 i.e. μ =7 and σ =2. We have to…

Q: The mean and standard deviation of the marks scored by the students of three sections are as…

A:

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…

A:

Q: what is the mean and standard deviation of the following sample:  10, 1, 2, 5, 9, 7, 2, 4

A: Mean and standard deviation of the sample:Mean is the measure of central value of the data set and…

Q: 6.) The daily water usage per person in Davao City is normally distributed with a mean of 18 gallons…

A: 6.) The daily water usage per person in Davao City is normally distributed with a mean of 18 gallons…

Q: 1.What is the sample standard deviation of this data set? {2,7,9,15,15} GeoGebra Calculator 4.96…

A: 9

Q: What is the percentile rank for a student who scored 74 on a softball rules test if the class mean…

A:

Q: Find the range and standard deviation of the set of data. 3, 7, 3, 7, 7, 10, 12 O

A:

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: 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: Find the range and standard deviation of the set of data. 10, 8, 6, 13, 23 O

A: we first calculate the range of our data range = maximum-minimum=23-6=17range =17Mean=μ=sum of all…

Q: Imagine that every elementary school in California is measured on several characteristics and then…

A: From the provided information, Mean (µ) and standard deviation (σ) of the school in Los Angeles…

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

A:

Q: For a set of data, μ = 71, X=35, z = -0.60. What is the standard deviation of the population?

A: Given that.   X~N( μ , ?^2 )   μ=71   , ?=?  , X=35 , z=-0.60   Z-score =( x - μ )/?

Q: 4. Find the mean absolute deviation for: Cost of books in dollars: 4, 15, 8, 4, 6, 11, 1, 7, 3, 1

A:

Q: The following data in Table 1 represent the travel time (in minutes) for nine students enrolled in…

A: To find: 1.Mean 2. Median 3.Range 4. Population standard deviation

Q: 10. Find mean deviation and its coefficient using by A.M. and Median. Values 31, 46, 47, 48, 52, 58,…

A:

Q: What statement below is true about the ages of these students when considering standard deviations?

A: The standard deviation of the ages of undergraduate students at university A is 5 years. And the…

Q: 4) Which of these samples would have the smallest standard deviation? a. 101, 92, 84, 131 b. -25,…

A:

Q: 7. A set of data has a variance of 81. What is the standard deviation?

A:

Q: 7. A set of data is normally distributed with a mean of 74. If the z-score corresponding to a value…

A:

Q: 4. What is the standard deviation of the data {7, 1, 7, 10, 5, 3, 2}? 5.0 2.7 3.0 9.0

A:

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

A:

Q: You are the governor of the state and must decide which of the three metropolitan police departments…

A: The performance of each department is summarized in monthly arrest statistics in the table below.

Q: Suppose you have the population 50 and 80 and that their corresponding z-scores are -1 and -2,…

A:

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: The providence health maintenance organization wants to establish a criterion for recommending…

A: Given Information Mean (µ) = 178.1 Standard deviation (σ) = 40.7

Q: 6. When the mean is used to measure the location of a set of observations, you would usually measure…

A: Standard deviation: The standard deviation indicates by how much each observation differs from a…

Q: Find the range and standard deviation of the set of data. 4, 7, 4, 7, 7, 9, 11 O

A: The detailed solution is as follows below:

Q: 2. Write a paragraph that explains why "the z-score associated with the raw score of x; (i.e., zri)…

A: Given : Z score associated with raw score of xi is number of standard deviation above or below  the…

Q: 12. What is the standard deviation of the data (7, 1, 7, 10, 5, 3, 2}? 9.0 3.0 5.0 2.7

A: Given data set is:  {7,1,7,10,5,3,2}

Q: 3. If the mean of 5 observations is 2, and the deviations of these observations about their mean…

A:

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

A: Consider, (µ) = 50 and (σ) = 5 Let, X be the scores of the population. If 10 points are added to…

Q: What is the population mean, population variance and population standard deviation of the given…

A: Mean = ΣXi/n = (160+150+165+180+175+172)/6 =167 Variance= ΣXi2/n -(mean2)…

Q: 6. The marks obtained by 11 students as follows. You calculate quartile deviation and its…

A: