Question

a study shows that 16% of household appliances break during any given year. If a person has 4 household appliances, what is the probability that exactly 1 of them will break next year? I just need a formula and I can get it from there.

Answer 1

would that not be

.16 * (1-.16)^3

?

Answer 2

Steve no that does not produce the correct answer

Answer 3

hmmm. The only other candidate I see would be 4 times that. You know

P(only 1st) + P(only 2nd) + ...