Suppose a celebrity gains a twitter follower every 15 minutes, with a pattern that conforms to...
Suppose a celebrity gains a twitter follower every 15 minutes, with a pattern that conforms to the exponential distribution. He has 999,999 followers. What is the probability he'll have to wait at least half an hour to reach 1 million?
Homework Answers
| here for exponential distribution parameter β = 15 |
probability he'll have to wait at least half an hour to reach 1 million =P(no new follower in next 30 minutes):
| P(X>30)=1-P(X<30)=1-(1-exp(-30/15))= | 0.1353 | ||
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