Question

A space transport carries a droid 65% of the time. If 15 space transports are selected at random, What is the probability that more than 13 transports are carrying a droid?

Answer 1

1, minus the probability that they are carrying 0,1, or 2

Answer 2

Would it look like this? E(x) = 13(.65) ?

Answer 3

\[1-\left[\binom{15}{0}.65^0.35^{15}+\binom{15}{1}.65^1.35^{14}+\binom{15}{2}.65^2.35^{13}\right]\]

Answer 4

Oh. Okay! Thanks!