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

d is correct

step-by-step explanation:

sinn is the total amount of students now and m were the students before, you subtract them both (n-m) and divide that by m. then, since to get a percentage from a fraction you have to multiply by 100, your answer should look like this: n-m/m*100

step-by-step explanation:

the arc length is found by finding the circumference of the full circle (2xpixradius) and then dividing by 4 to find just one quarter of the circle (90 degrees).

there is no picture in order for this question to be answered