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(Solved): QUESTION 1 A normally distributed set of data has a mean of 150 and a standard deviation of What pe ...
QUESTION 1 A normally distributed set of data has a mean of 150 and a standard deviation of What percent of data is between 70 and 1257 What percent of data fall between 50 and 1007 e Between whal values the probability is 80% wymmetrically around the mean? Artach File Brow Local Pos throwse Content Collection
Expert Answer
Question 1 Mean = 150 Standard deviation = 25 a). Percentage of data between 70 and 125 The Z score associated with 70 and 125 is determined. Z score for 70 = = = -80 / 25 = -3.2 Z score for 125 is = = -25 / 25 = -1 Using standard normal distribution