MATLAB: An Introduction with Applications
MATLAB: An Introduction with Applications
6th Edition
ISBN: 9781119256830
Author: Amos Gilat
Publisher: John Wiley & Sons Inc
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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

Two hundred consumers were surveyed about a new brand of snack food, Crunchicles. Their age groups and preferences are given in the table.

  18–24 25–34 35–55 55 and over Total
Liked Crunchicles 16 22 15 36 89
Disliked Crunchicles 3 5 3 4 15
No Preference 23 9 29 35 96
Total 42 36 47 75 200

One consumer from the survey is selected at random. Use reduced fractions for your responses to each of the following questions.

What is the probability that the consumer is 18–24 years of age, given that he/she dislikes Crunchicles?

  

What is the probability that the selected consumer dislikes Crunchicles?

  

What is the probability that the selected consumer is 35–55 years old or likes Crunchicles?

  

If the selected consumer is 70 years old, what is the probability that he/she likes Crunchicles?

  

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