Mathematics, 09.02.2021 01:00 nany1982
The probability distribution below is for the random variable XXthe number of credits taken by a randomly selected first-year student at a large state
university
Credits 14
17
Probability 0.05 0.65
0.10
15
16
0.20
(a) Is X a discrete or a continuous random variable? Explain
(b) Show that the probability distribution of X is valid
(c) Make a histogram of the probability distribution. Describe its shape.
(d) Compute and interpret the expected value of X Show work,
(e) The standard deviation is 0.726. Interpret this value in the context of the problem.
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