1. Statistics and Probability students had their 50-item quiz. Given the mean score of the students is 35 and a standard deviation of 6. Find the percentage of students whose score are: a. From 25 to 35 b. From 35 to 46 c. Below 37 d. Above 30 e. Find the minimum score of the students of the upper 20%.

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A: It is given that,Part a) Part b) To find the mean value in both cases.

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Q: Use the sample mean(78.5)and sample standard deviation (12.3671)in your calculations below. Use…

A: Given that:

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Q: 1. Given the data set which represents quiz scores in your math class: 12, 15, 16, 16, 17, 22 find…

A: Note: Hi! Thanks for posting the question. Since there are more than three sub-part questions, we…

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Q: 20. For the data in the following sample: 10, 6, 8, 6, a. Find the mean and the standard deviation.…

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A: We have given that Sample size=n=12 Mean=mu=100  Standard deviation=sigma=20

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A: Given that, Mean = 72 Standard deviation = 7

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Q: Find the standard deviation of the following set of scores. 10, 2, 38, 23, 38, 23, 21, 23

A: From given data, set of score: 10, 2, 38, 23, 38, 23, 21, 23 Count, N = 8 Sum, ∑x = 178

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Q: Use these Reading scores to anwser the following questions 7, 7, 8,10,14 ,11,13, 9, 8,12,15,15 A.…

A: Given reading scores are,7, 7, 8,10,14 ,11,13, 9, 8,12,15,15Total count, N = 12