The marks of six students in a science test are represented by the variable x. The following data was produced: n=6, Σx = 279 and Σx2 = 13 093. Find the mean and standard deviation.

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A: We have given that.   X~N( μ , ?^2 )   μ = , ? =   Z-score =( x - μ )/?

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Q: suppose the average time to fill a routine prescription at a local pharmacy is 35 minutes based on…

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