Assume a Poisson random variable has a mean of 8 successes over a 112-minute period. a. Find the mean of the random variable, defined by the time between successes.
Mean
b. What is the rate parameter of the appropriate exponential distribution? (Round your answer to 2 decimal places.)
Rate parameter
c. Find the probability that the time to success will be more than 66 minutes. (Round intermediate calculations to at least 4 decimal
places and final answer to 4 decimal places.)
Probability

The perimeter of a movie screen is 54 meters. the screen is 18 meters wide. how tall is it?

Someone answer asap for ! a ball is rolled down a ramp. the height, f(x), in meters, of the ball x seconds after it is released is modeled by the function f(x) = x²- 10x + 25 for all values of x from 0 to 5. which statement about the ball is true? a. the maximum height of the ball is 5 meters b. the height of the ball increases from 0 to 5 meters above the ground. c. the ball has traveled 5 meters when it reaches the bottom of the ramp. d. the ball has been traveling for 5 seconds when it reaches the bottom of the ramp

How does the graph of y = 3x compare to the graph of y = 3-x?