Speeding: on a stretch of interstate-89, car speed is a normally distributed variable with a mean of 69.1 mph and a standard deviation of 3.3 mph. you are traveling at 73 mph. approximately what percentage of cars are traveling faster than you? enter your answer as a percentage with 1 decimal place.

11.9%

Step-by-step explanation:

Given :  On a stretch of Interstate-89, car speed is a normally distributed variable with mph and mph.

Let x be a random variable that represents the car speed.

Since ,

z-score corresponds x = 73 ,

Required probability :

[using z-value table.]

Hence, the approximate percentage of cars are traveling faster than you = 11.9%

correct choice is b

step-by-step explanation:

when you calculate the average rate of change of a function, you are finding the slope of the secant line between the two points. for the function the average rate of change from point to point can be calculated as

to find the average rate of change from day 2 to day 10, note that at day 2, 8 houses were sold, so a(2,8) and at day 10, 2 houses were sold, so b(10,2). thus,