Question

The number of adults living in homes on a randomly selected city block is described by the following probability distribution. Number of adults, x1 ,2,3,4 or moreProbability, P(x) 0.250.500.15??? What is the probability that 4 or more adults reside at a randomly selected home?(A) 0.10(B) 0.15 (C) 0.25(D) 0.50 (E) 0.90

Answer 1

The answer is letter A. 0.1

because the probability = 1

So Probability of select 4 adults = 1 - 0.25 - 0.5 - 0.15

= 0.1