(a) There are six car parks along a road. The probability that a car park remains empty at 10 am on particular Sunday is 0.1. (i) Find the probability that exactly 5 car parks are filled. (ii) Compute the probability that at least 2 car parks are empty.

College Algebra
7th Edition
ISBN:9781305115545
Author:James Stewart, Lothar Redlin, Saleem Watson
Publisher:James Stewart, Lothar Redlin, Saleem Watson
Chapter9: Counting And Probability
Section9.3: Binomial Probability
Problem 2E: If a binomial experiment has probability p success, then the probability of failure is...
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Q1
(a)
There are six car parks along a road. The probability that a car park remains
empty at 10 am on particular Sunday is 0.1.
(i)
Find the probability that exactly 5 car parks are filled.
(ii)
Compute the probability that at least 2 car parks are empty.
(b)
1% of the electric bulbs that is produced by a factory are defective. A random
sample of 250 electric bulbs are selected.
Find the probability that 3 electric bulbs are defective.
Transcribed Image Text:Q1 (a) There are six car parks along a road. The probability that a car park remains empty at 10 am on particular Sunday is 0.1. (i) Find the probability that exactly 5 car parks are filled. (ii) Compute the probability that at least 2 car parks are empty. (b) 1% of the electric bulbs that is produced by a factory are defective. A random sample of 250 electric bulbs are selected. Find the probability that 3 electric bulbs are defective.
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