Math153 Name(s): _________________________________________

3/06 _______________________________________________

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Project 7: (10 points)

Due: on or before Friday, MARCH 31, 2006 (ALSO Project Extra Credit 2 due 3/31).

(3 points)

a) If P(A) = ¼ and P(B) = 1/8 and A and B are mutually exclusive events, find P(A or B).

(3 points)

b) If P(A) = ¼ and P(B) = 1/8 and A and B are independent events, find P(A or B).

(4 points)

c) The probability that a Junky airlines flight arrives on time is 52.3%. What is the probability that, out of 8 randomly selected flights, at least one arrives on time? (Round answer to 3 decimal places.) Try to think of an easier way to do this (Text: Rule of “at least one”.) ________________