The speed of cars on a stretch of road is normally distributed with an average 51 miles per hour with a standard deviation of 5.9 miles per hour. what is the probability that a randomly selected car is violating the speed limit of 50 miles per hour?
0.43
0.50
0.51
0.57

0.57

Step-by-step explanation:

Given : The speed of cars on a stretch of road is normally distributed .

Population Mean =

Standard deviation :

Let x be the random variable that represents the speed of cars on a stretch of road .

z-score :

For x= 50.

By using the standard normal distribution table ,

The probability that a randomly selected car is violating the speed limit of 50 miles per hour :-

i not know

step-by-step explanation:

step-by-step explanation:

use pothagarean therom

a^2+b^2=c^2 so first ac

acm is a right triangle because c= 90°

and am (the hypotenuse or c) =16+9 =25

but there is not enough info we need another angle or side length