An airline claims that 90% of the time its planes are on schedule. if 3 flights are selected at random what is the probability that the first two are on schedule and the third is not on schedule.

Determine the required value of the missing probability to make the distribution a discrete probability distribution. x p(x) 3 0.23 4 ? 5 0.51 6 0.08 p(4) = nothing  (type an integer or a decimal.)