What percent of the data is below 130?  What percent of the data is above 150.8?  What percent of the data is between 115 and 129?  What percent of the data is below 110?  What percent of the data is between 127 and 158?

Q: The time for degree completion was record below. Years 4 6 5 6 5 8 Calculate the standard…

A: Calculation:The number of observations on time for degree completion (years) is, n = 6. Denote xi as…

Q: The coefficient of variation CV describes the standard deviation as a percent of the mean. Because…

A:

Q: Use the body temperatures, in degrees Fahrenheit, listed in the accompanying table. The range of the…

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Q: he amount of caffeine in a sample of five-ounce servings of brewed coffee is shown in the histogram.…

A: The amount of caffeine in a sample of five-ounce servings of brewed coffee is shown above  the…

Q: 68. The heights of the 430 National Basketball Association players were listed on team rosters at…

A: The question is about normal distribution.Given :Population mean height of basketball players (  ) =…

Q: Data table

A: Calculations for Height:

Q: Use the table to answer each question. Note: Round z-scores to the nearest hundredth and then find…

A: We have to find given probability.

Q: Print Refrigerator manufacturers design their freezer units to maintain temperatures within a…

A: a.   Consider that σ2 is the true variance of temperatures of refrigerator.

Q: Standard Deviation: A measure of the dispersion of a set of data from its mean. These are the steps…

A: Given temperature :  N=8 { 32,36,29,34,31,33,27,34 }  First we will calculate mean than we will…

Q: A simple data set has been provided to practice the basics of finding measures of variation. For the…

A: Data-  8​,4​,6​,5​,7   a) range is the difference of maximum observation from data - minimum…

Q: Assume that a randomly selected subject is given a bone density test. Bone density test scores are…

A: We have given that.    X~N( 0 , 1 )    μ = 0    , ? = 1

Q: the average grade is 84 with a standard deviation of 4. What is each grade for -1 2 0 1.5 -1.25

A: Given Mean μ=84Standard deviation σ=4 The formula for Z score isZ=X-μσX=Z×σ+μ

Q: In the 1992 presidential election, Alaska's 40 election districts averaged 1983 votes per district…

A: Solution: We have, X = number of votes for President Clinton for an election district.  X ~ N(1983,…

Q: Use the frequency distribution to construct a histogram. Does the histogram appear to depict data…

A: Use the frequency distribution to construct a histogram. Weight (g) Frequency 6.000-6.049 3…

Q: Construct one table that includes relative frequencies based on the frequency distributions shown…

A: First, we need to calculate the total frequency for both nonfiltered and filtered cigarettes. This…

Q: Determine whether each statement below is true or false. About 68% of the data lies within one…

A: To determine whether the given statement is true or false.

Q: n the distribution shown, state the mean and standard deviation. Hint: The vertical lines are 1…

A: The vertical line in the distribution shows the 1 standard deviation apart.

Q: A nurse working in a hospital collects data on the number of days patients stay in a hospital. The…

A: Standard deviation

Q: The length of human pregnancies from conception to birth varies according to a distribution that is…

A: Given mean =266 days standard deviation =16 days.

Q: Find the indicated IQ score. The graph to the right depicts IQ scores of adults, and those scores…

A: Let X denote the IQ scores and it follows normal distribution with  mean of μ=100 and standard…

Q: Which set of scores has the smallest standard deviation?​ Group of answer choices a. ​5, 11, 42, 22…

A: a)Given data set is 5,11,42,22

Q: Directions Answer the following questions. You may use StatCrunch to perform your calculations. 1.…

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Q: The figure below shows a frequency and relative-frequency distribution for the heights of female…

A: Given frequency and relative-frequency distribution for the heights of female students attending a…

Q: 14. A normal distribution has a mean of µ = 50 and a standard deviation of o = 5. For each of the…

A: It is given that the mean is 50 and the standard deviation is 5.

Q: The frequency distribution was obtained using a class width of 0.5 for data on cigarette tax rates.…

A: Given , the frequency distribution,  we need to find the population mean and population standard…

Q: Consider the given set of numbers: 87.6, 89.0, 88.8, 87.9 What is the average of the numbers? 88.3…

A:

Q: The amount of caffeine in a sample of five-ounce servings of brewed coffee is shown in the…

A:

Q: A distribution of values is normal with a mean of 190 and a standard deviation of 4. Find the…

A: Given: Population mean μ= 190 Standard deviation σ= 4

Q: instructor gives a 100-point examination in which the grades are normally distributed. The mean is…

A: It is given that  Mean, μ = 66 Standard deviation, σ = 5 Z-Score, Z = ( X - μ )/σ

Q: The amount of caffeine in a sample of five-ounce servings of brewed coffee is shown in the…

A: