Suppose that grade point averages of undergraduate students at one university have a bell-shaped distribution with a mean of 2.5 and a standard deviation of 0.38. Using the empirical rule, what percentage of the students have grade point averages that are between 1.36 and 3.64

Q: If a sample has a mean of 100 and a standard deviation of 6, what is the value in the data set that…

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Q: Assume that adults have iq scores that are normally distributed with a mean of 100 and a standard…

A: Solution: Let X be the adults IQ score has normally distributed with mean μ=100 and standard…

Q: Suppose that grade point averages of undergraduate students at one university have a bell- shaped…

A: Mean = 2.59 Standard deviation = 0.39

Q: The lengths of brook trout caught in a certain Colorado stream are normally distributed with a mean…

A: Given that :  Mean = 14 inches S. D = 3 inches Here we use standard normal distribution concept…

Q: Suppose that grade point averages of undergraduate students at one university have a bell-shaped…

A: Empirical rule: The probability that the observation under the normal curve lies within 1 standard…

Q: if a student scored 88 points on a test when the mean score was 80.2 and the standard deviation was…

A: From the provided information, Mean (µ) = 80.2 Standard deviation (σ) = 5.7

Q: Suppose that the scores on a reading ability test are normally distributed with a mean of  60  and…

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Q: Suppose that grade point averages of undergraduate students at one university have a bell-shaped…

A: Answer: 2.5%.Explanation:Detailed explanation: 1. Calculating the Z-score: The Z-score formula…

Q: Suppose that grade point averages of undergraduate students at one university have a bell-shaped…

A: Empirical rule :  According to empirical rule ,  68% of data falls within the first standard…

Q: heights of adult women in the United States are normally distributed with a mean of 65 inches and a…

A: The z score can be calculated as: z=x-μσ The required z score that is associated with the top 10% or…

Q: Suppose the prevalence of type II diabetes in a community is 36%. Researchers want to sample 16…

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Q: Suppose that grade point averages of undergraduate students at one university have a bell-shaped…

A: According to the given information, we have Mean = 2.55 Standard deviation = 0.43 Given that the…

Q: Suppose that shoe sizes of American women have a bell-shaped distribution with a mean of 8.11 and a…

A: Given that the shoe sizes of American women have a bell-shaped distribution with a mean of 8.11 and…

Q: A set of wrist watch prices are normally distributed with a mean of 76dollars and a standard…

A: From the provided information, Mean (µ) = 76 Standard deviation (σ) = 10 X~N (76, 10) Here X be a…

Q: Suppose that shoe sizes of American women have a bell-shaped distribution with a mean of 8.36 and a…

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Q: Suppose that salaries for recent graduates of one university have a mean of $24,900 with a standard…

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Q: ppose that shoe sizes of American women have a bell-shaped distribution with a mean of 8.42 and a…

A: Given data,Mean μ=8.42sd    σ=1.52P(6.9<X<9.94)=?

Q: Suppose the scores of students on an exam are normally distributed with a mean of 454 and a standard…

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Q: Suppose that grade point averages of undergraduate students at one university have a bell-shaped…

A: the PDF of normal distribution is = 1/σ * √2π * e ^ -(x-u)^2/ 2σ^2standard normal distribution is a…

Q: Suppose that grade point averages of undergraduate students at one university have a bell-shaped…

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Q: Suppose that grade point averages at one university have a bell-shaped distribution with a mean of…

A: Let, X denote the grade point average.It is given that:X follows the bell-shaped distribution with…

Q: Suppose that grade point averages of undergraduate students at one university have a bell-shaped…

A: Solution let X: grade point of undergraduate students with a mean of 2.61 and a standard deviation…

Q: Assume that adults have IQ scores that are normally distributed with a mean of 100.3 and a standard…

A: Assume that adults have IQ scores that are normally distributed with a mean of 100.3 and a standard…

Q: (a) between 56 and 74. % (b) above 68. % (c) below 56. %

A: here as per guideline i have calculated 3 subparts , plz repost for remainning. Suppose that the…

Q: Suppose the scores of students on an exam are normally distributed with a mean of 558 and a standard…

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Q: Suppose the scores of students on an exam are normally distributed with a mean of 253 and a standard…

A: From the provided information, Mean (µ) = 253 Standard deviation (σ) = 80

Q: Suppose that the daily viewing time is normally distributed with a mean of is 8.35 hours and a…

A: Determine the number of hours of television viewing must a household have in order to be in the top…

Q: According to a recent report the battery life for a new line of laptop computers has a mean of 9…

A: The normal distribution:A continuous random variable X is said to follow normal distribution if the…

Q: Suppose that grade point averages of undergraduate students at one university have a bell-shaped…

A: We have to find out given probability...

Q: Suppose that IQ scores have a bell-shaped distribution with a mean of 100 and a standard deviation…

A: Solution Given: According to empirical rule (68-95-99.7 rule).

Q: The lengths of brook trout caught in a certain Colorado stream are normally distributed with a mean…

A: Mean==14Standard deviation==3

Q: Suppose the distribution of typing speeds in words per minute for experienced typists can be…

A: Solution: Let X be the typing speed in words per minute. From the given information, X follows…

Q: Suppose that shoe sizes of American women have a bell-shaped distribution with a mean of 8.4 and a…

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Q: 5 will be drawn from a population of test takers with a mean of 150 and standard deviation 9. Find…

A: Given that  Sample size (n) = 75 Population mean (μ) = 150 Standard deviation (σ) = 9   We know that…