In: Statistics and Probability
Let X denote the distance (m) that an animal moves from its birth site to the first territorial vacancy it encounters. Suppose that for banner-tailed kangaroo rats, X has an exponential distribution with parameter λ = 0.01452.
(a) What is the probability that the distance is at most 100 m? At most 200 m? Between 100 and 200 m? (Round your answers to four decimal places.)
| at most 100 m | ||
| at most 200 m | ||
| between 100 and 200 m | 
(b) What is the probability that distance exceeds the mean distance
by more than 2 standard deviations? (Round your answer to four
decimal places.)
(c) What is the value of the median distance? Hint: Find a such
that
P(X≤a)= 0.50
(Round your answer to two decimal places.)
(d) Only 5% of animals will move farther than what distance? Hint:
Find a such that
P(X≤a)= 0.95
. (Round your answer