Determine the percentage of variation in the observed values of the response variable that is explained by the regression. Round to the nearest tenth of a percent if needed. x 5 10 4 6 10 9 64 86 69 86 59 87 y

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Q: Find the following z-scores when the mean is 25 and the standard deviation is 4: a) 20 b) 32 c) 28…

A: It is given that Mean = 25, SD = 4 The z score is is defined as Z = (X - mean)/SD

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Q: Given that a data set has a mean of  40 and a standard deviation of 4, find the percent of data…

A: Given that  Mean = M = 40 Standard deviation = SD = 4