OpenStax, Introductory Statistics 2e §5.3 The Exponential Distribution · Example 10 · Probability · Continuous distributions
The Exponential Distribution · Example 10
(a) Find the average time between two successive calls.
(b) Find the probability that after a call is received, the next call occurs in less than ten seconds.
(c) Find the probability that exactly five calls occur within a minute.
(d) Find the probability that less than five calls occur within a minute.
(e) Find the probability that more than 40 calls occur in an eight-minute period.
Its source prints no answer for this problem, so there's nothing to check against.
OpenStax, Introductory Statistics 2e · §5.3 The Exponential Distribution · Example 10
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