(ii) exactly ten buses arrive from 5.00 pm to 6.30 pm, and three buses arrive from 6.30 pm to 7 pm?

A First Course in Probability (10th Edition)
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ISBN:9780134753119
Author:Sheldon Ross
Publisher:Sheldon Ross
Chapter1: Combinatorial Analysis
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Problem 1.1P: a. How many different 7-place license plates are possible if the first 2 places are for letters and...
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please do (ii) only .

 

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(c)
The average number of buses leaving Station A in one- hour time is 12 buses.
The bus service starts at 6 am and ends at 9 pm. What is the probability that
(i)
the time until next bus to arrive is 12 minutes?
(ii)
exactly ten buses arrive from 5.00 pm to 6.30 pm, and three buses arrive
from 6.30 pm to 7 pm?
Transcribed Image Text:(c) The average number of buses leaving Station A in one- hour time is 12 buses. The bus service starts at 6 am and ends at 9 pm. What is the probability that (i) the time until next bus to arrive is 12 minutes? (ii) exactly ten buses arrive from 5.00 pm to 6.30 pm, and three buses arrive from 6.30 pm to 7 pm?
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