A recent study shows that 30% of all adults in the U.S. played tennis at least once last year. 1. If you survey 12 random adults, what is the probability that exactly 4 played tennis? 2. If you survey 9 random adults, what is the probability that less than three played tennis? 3. If you survey 15 random adults, what is the probability that at least 6 played tennis? 4. If you survey 10 random adults, what is the probability that between 2 and 5 of them (inclusive) played tennis?

A recent study shows that 30% of all adults in the U.S. played tennis at least once last year. 1. If you survey 12 random adults, what is the probability that exactly 4 played tennis? 2. If you survey 9 random adults, what is the probability that less than three played tennis? 3. If you survey 15 random adults, what is the probability that at least 6 played tennis? 4. If you survey 10 random adults, what is the probability that between 2 and 5 of them (inclusive) played tennis?

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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Concept explainers

Estimation

A new framework of data analysis where the new statistical methods are used for interpreting the results and analyzing the data is known as estimation in statistics.

Question

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A recent study shows that 30% of all adults in the U.S. played tennis at least once last year.
1. If you survey 12 random adults, what is the probability that exactly 4 played tennis?
2. If you survey 9 random adults, what is the probability that less than three played tennis?
3. If you survey 15 random adults, what is the probability that at least 6 played tennis?
4. If you survey 10 random adults, what is the probability that between 2 and 5 of them
(inclusive) played tennis?

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