contestada

The probability that a house in an urban area will be burglarized is​ 5%. If 20 houses are randomly​ selected, what is the mean of the number of houses​ burglarized?

Respuesta :

thaovtp1407

Answer:

0.35

Step-by-step explanation:

Assuming a large city (so that the sample size does not affect the population probability), then the probability of a house is NOT burglarized is (1-0.05)=0.95.

By the multiplication law, randomly selecting 20 houses not burglarized is

P(20)= [tex]0.95^{20}[/tex] = 0.35

Otras preguntas