Question

the number of adult living in home on randomly selected city block is described by the following probability distribution... no of adult = x = 1, 2, 3, 4 or more. probability =p(x) = 0.25, 0.50, 0.15, ??? what is the probability that 4 or more adult reside at a randomly selected home ?​

Answer 1

Step-by-step explanation:

Consider selecting cards from a pack of cards without replacement. What is the probability that of the cards will be black

Answer 2

Given: the number of adult living in home on randomly selected city block is described by the following probability distribution... no of adult = x = 1, 2, 3, 4 or more. probability =p(x) = 0.25, 0.50, 0.15, ???

To find: The probability that 4 or more adult reside at a randomly selected home.

Solution:

The probability of an event is the measure of the chances of the occurrence of it. The sum of all the probabilities in an event is 1. The sum of the probabilities of 1, 2 and 3 adults residing at a randomly selected home is

$0.25 + 0.50 + 0.15 = 0.90$

Let the probability for four or more adults residing at a randomly selected home be x. Now the sum of the other probabilities and x would be equal to 1.

$0.90 + x = 1$

$x = 0.10$

Therefore, the probability that 4 or more adult reside at a randomly selected home is 0.10.