Refer to the given problem in answering numbers 14-15. The daily demand for copies of a magazine at a variety store has the probability distribution as follows. Number of Copies X Probability P(X)
0 0.10
1 0.25
2 0.30
3 0.16
4 0.05
5 0.14
14. What is the probability that three or more copies will be demanded on a particular day? A. 0.30 C. 0.65 B. 0.35 D. 0.75
15. What is the probability that the demand will be at least one but not more than five? A.0.76 C.0.51 B. 0.71 D. 0.43
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Answer:
solution:
the probability is P(3) + P(4) + P(5)
P(5)=0.16+0.05+0.14
=0.35