If the coefficient of variation for a data is given as 35%, and the standard deviation for the same data is 32. What is the mean? Select one: a.91.43 b.0.91 c.1120 d.11.2

Q: Suppose a population is known to be normally distributed with a mean, μ, equal to 144 and a standard…

A: Given,   Mean = 144 Standard deviation = 27   The objective is find the percent of the population…

Q: Assume that scores on a trivia challenge test were distributed normally, with an average score of 70…

A: Given data, μ=70σ=6

Q: The lowest and the highest data value of a data set are 12 and 28 respectively, then the approximate…

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Q: In a departamental examination in  statistics given to 500 students, the mean score was 75 with a…

A: A z score tells us where score is lies on normal distribution curve. if z score is is zero is it…

Q: The mean of a data set is 20 and the standard deviation is 2. What percentage of data value will…

A: Given  Mean=20, sigma=2 P(12<X<28)= ?

Q: 4. The lowest and the highest data value of a data set are 12 and 28 respectively, then the…

A: Hey there! Thank you for posting the question. Since there are multiple questions posted, we will…

Q: If the variance of the data values in a sample is 324, what is the standard deviation of the data…

A: Given that  Variance=324 Find standard deviation

Q: If the variance of the data values in a population is 169, what is the standard deviation of the…

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Q: If a set of data has a mean of 50 and a standard deviation of 4.5, what is the z-score for a value…

A: If a set of data has a mean of 50 and the standard deviation of 4.5. We have to find the z-score for…

Q: Suppose a population of individuals has a mean weight of 160 pounds, with a population standard…

A: Solution: Let X be the weight of individuals. From the given information, X follows normal…

Q: What percent of the distribution is included within 1.75 standard deviation? please answer…

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Q: In a departamental examination in  statistics given to 500 students, the mean score was 75 with a…

A: Given: μ=75σ=8N=500

Q: A Population has a Mean of 90 and a standard deviation of 25.  A sample of 20 college students is…

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Q: A biologist found the wingspans of a group of monary butterflies to be normally distributed with a…

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Q: If the standard deviation of the data values in a sample is 14, what is the variance of the data…

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Q: If a product has a mean demand of 80 with a standard deviation of 10, if the customer holds 100…

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Q: In any data set, what percent of data lies within 8 standard deviations of the mean a. 98.44% b.…

A: Solution-: We find the what percent of data lies within 8 standard deviations of the mean (a) 98.44%…

Q: On a standardized test with a normal distribution, the me was 64.3 and the standard deviation was…

A: We have given that  The scores follow the normal distribution with mean 64.3 and standard deviation…

Q: In a Science test, the mean is 46 and the standard deviation is 4. Assuming the scores are normally…

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Q: What is the percentile rank for a raw score of 85 if the mean is 93 and the standard deviation is…

A: Given information Population mean µ = 93 Standard deviation σ = 15 We have to determine the…

Q: Given IQ scores are approximately normally distributed with a mean of 100 and standard deviation of…

A: Given IQ scores are approximately normally distributed with a mean of 100 and standard deviation of…

Q: On average 16 customers are served per hour in a bank serving point. What is the mean and standard…

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Q: A pharmacologist measured the concentration of dopamine in the brains of several rats.The mean…

A: Mean = 1269 Standard deviation = 145

Q: Which of the following could be the standard deviation of a data set with a median of 10 and a range…

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Q: Assuming that the heights of college women are normally distributed with mean 65 inches and standard…

A: Given that, Mean, mu= 65 And standard deviation, sigma= 3.4

Q: Given the mean of GRE scores is 150 and the standard deviation is 8.8. What proportion of combined…

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Q: Using Chebyshev's rule, at least what percent of the distribution lies between 3 standard deviations…

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Q: Suppose a population is known to be normally distributed with a mean, µ, equal to 144 and a standard…

A:

Q: Given IQ scores are approximately normally distributed with a mean of 100 and  standard deviation of…

A: GivenMean(μ)=100standard deviation(σ)=15

Q: The average life of a car tire is 50,000 miles.  The standard deviation is 2,000 miles   What…

A: Normal distribution, also known as the Gaussian distribution, is a probability distribution that is…

Q: If a distribution has a mean of 35 and a standard deviation of 5, what value would be +1.5 standard…

A: Given that The value of mean of 35, Standard distribution of 5 and that correspond s to a z-score of…

Q: Refer to the accompanying table, which describes the number of adults in groups of five who reported…

A: The mean for the number of sleepwalkers in groups of five is,…

Q: In a Science test, the mean is 46 and the standard deviation is 4. Assuming the scores are normally…

A:

Q: Assuming that the heights of college women are normally distributed with mean 65 inches and standard…

A: Given information Population means µ = 65 inches Standard deviation σ = 3.4 inches We have to…

Q: In a normal distribution, what percent of information falls within one standard deviation of the…

A: In a Normal Distribution, within one standard deviation of the mean

Q: :When a distribution is bell-shaped, approximately what percentage of data values Will Fall within 3…

A: We have to find correct answer.

Q: Suppose a population is known to be normally distributed with a mean, µ, equal to 116 and a standard…

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Q: A biologist found the wingspans of a group of monary butterflies to be normally distributed with a…

A: Solution: a. Let X be the wingspans of a group of monary butterflies. From the given information, X…

Q: For the study purpose, the mean of the observations is 148 gm and standard deviation is 17.4 gm.…

A: The coefficient of variation is calculated asCV=σμ×100%

Q: If some data is symmetrical and unimodal, and the mean and standard deviation are 230 and 40…

A: If the data is symmetrical and unimodal, then it is normally distributed with mean, μ=230 and…

Q: Given forecast errors of -5, 8, 8, and -3, what is the mean absolute deviation? O 2 O 4 6

A: The mean absolute deviation is obtained below: The given forecast error is -5, 8, 8 and -3. Let  E…

Q: How many of the sample of families would fall above 2 standard deviations from the mean? A. 0 B. 1…

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Q: A data set is normally distributed with a mean of 6363 and a standard deviation of 10.4.10.4. What…

A: Let X be the data value which follows normal distribution with mean 63 and standard deviation 10.4.…

Q: the standard deviation of a sample of 50 observations equals 10. the variance of the sample equals?…

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Q: On a standardized test, Sara had a score of 93, which was exactly 2 standard deviations above the…

A: The normal distribution in the center is generally denser and basically less dense at tails. There…

Q: It is given that the standard score is 2.8 and it is known that for the normal distributed data 52,…

A: The normal distribution  in the center are generally denser and basically less denser at tails.…

Q: According to Chebyshev's theorem, which of the following is the percentage of measurements in a data…

A: please see the next step for solution

Q: A test was given to 120 students, and the scores 8 approximated a normal distribution. If the mean…

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Q: The standard deviation of a variable is 15. If a sample of 100 individuals is selected, what size…

A: The standard error of mean is, SE = σ/√n, where σ is the standard deviation and n is the sample…

Q: Suppose the measurement of 800 items are normally distributed with mean 66 cm and standard deviation…

A: