# Thread: Couple of probability problems.

1. ## Couple of probability problems.

Prolly easy, but I can't get the right answer. Thanks in advance.

Three football players, A1 A2 A3, will attempt a field goal from the 25 yard line. A1, A2 and A3 are mutually independent and p(A1) = 0.5; p(A2) = 0.7 and p(A3) = 0.6

a) Compute the prob. that exactly 1 player is successful
b) Compute the prob. that 2 players make a field goal( ie one misses)

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There are 14 songs on a CD. You like 8 of them. If each is played in a random order, find the probability that of the first 2 songs played:

a) you like them both
b) you like neither
c) you like one of them

2. For the first one, we can count up the three different scenarios.

Player one makes it and the others don't: (.5)(.3)(.4)

Player two makes it and the other two don't: (.5)(.7)(.4)

Player three makes it and the other two don't: (.5)(.3)(.6)

Add them up .06+.14+.09=.29