10 Once again, consider the data set consisting of the number of credits taken by the 128 State University students living in a particular dormitory. Suppose that one such student will be selected at random. Find the probability that the selected student is taking: (a) exactly 14 credits (b) less than 13 credits (c) at least 15 credits (d) between 16 and 18 credits, inclusive Credits Frequency 10 1 11 0 12 13 14 15 16 17 18 19 20 TOTAL 18 9 22 15 25 10 21 5 2 128

Q: Please find question attached, Thank you!

A: a) Mean  = n×Π            = 60×(0.65)            = 39 Standard deviation = √(n×Π×(1- Π))…

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A:

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A: 1) The mean is calculated as follows: x¯=20+11+20+11+165=785=15.6

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A: