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8) 30% of pupils in a school travel to school by bus. From a sample of ten pupils chosen at random, find the probability that a) only three travel by bus (0.2668) b) less than half travel by bus(0.8497)

8) 30% of pupils in a school travel to school by bus. From a sample of ten pupils chosen at random, find the probability that a) only three travel by bus (0.2668) b) less than half travel by bus(0.8497)

A First Course in Probability (10th Edition)
A First Course in Probability (10th Edition)
10th Edition
ISBN:9780134753119
Author:Sheldon Ross
Publisher:Sheldon Ross
Chapter1: Combinatorial Analysis
Section: Chapter Questions
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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8) 30% of pupils in a school travel to school by bus. From a sample of ten pupils chosen at random, find the probability that a) only three travel by bus (0.2668) b) less than half travel by bus(0.8497)
Transcribed Image Text:8) 30% of pupils in a school travel to school by bus. From a sample of ten pupils chosen at random, find the probability that a) only three travel by bus (0.2668) b) less than half travel by bus(0.8497)
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