Wednesday

October 22, 2014

October 22, 2014

Posted by **jerry** on Monday, February 7, 2011 at 3:05pm.

a) explain why this is binomial experiment.

b) find the probability that exactly 7 of them started smoking before the age of 18.

c) find the probability that at least 7 of them started smoking before the age of 18.

d) find the probability that fewer than 4 of them started smoking before the age of 18.

e) find the probability that between 8 and 10 (inclusive) of them started smoking before the age of 18.

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