The distribution of scores on a statistics exam is T(50, 60, 95). (a) Find the mean. (b) Find the standard deviation. (c) Find the probability that a score will be less than 75. (d) Sketch the...


The distribution of scores on a statistics exam is T(50, 60, 95). (a) Find the mean. (b) Find the standard deviation. (c) Find the probability that a score will be less than 75. (d) Sketch the distribution and shade the area for the event in part (c).



May 20, 2022
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