High temperatures in a certain city for the month of August follow a uniform distribution over the interval 67 to 94 degrees. What is the probability that a randomly selected August day has a high temperature that exceeded 72 degrees F? Show your work.

Respuesta :

Answer:

The probability that a randomly selected August day has a high temperature that exceeded 72 is = 0.518

Step-by-step explanation:

Temperature interval for month of august = 67 to 94

Probability density function

[tex]f (x) = \frac{1}{94-67}[/tex]

f (x) = 0.037      Range 67 < x < 94

the probability that a randomly selected August day has a high temperature that exceeded 72 is calculated by multiplying the range with Probability density function .

Range = 86 - 72 = 14    &  f (x) = 0.037

Thus Probability

P ( 72<x<86 ) = 14 × 0.037

P ( 72<x<86 ) = 0.518

This is  the probability that a randomly selected August day has a high temperature that exceeded 72.