Answered: The accompanying table gives…

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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Question

100%

The accompanying table gives information on the type of coffee selected by someone purchasing a single cup at a particular airport kiosk.

	Small	Medium	Large
Regular	14%	20%	26%
Decaf	20%	10%	10%

Consider randomly selecting such a coffee purchaser.

(a)

What is the probability that the individual purchased a small cup? (Enter your answer to two decimal places.)

What is the probability that the individual purchased a cup of decaf coffee? (Enter your answer to two decimal places.)

(b)

If we learn that the selected individual purchased a small cup, what now is the probability that he/she chose decaf coffee? (Round your answer to three decimal places.)

How would you interpret this probability?

This is the probability of people who choose a cup, given that they chose a cup of coffee.

Answers to choose from drop down menu in part (b) are: decaf, small

(c)

If we learn that the selected individual purchased decaf, what now is the probability that a small size was selected? (Enter your answer to one decimal place.)

How does this compare to the corresponding unconditional probability of (a)?

This probability is the unconditional probability of selecting a small size.

Answers to choose from in drop down menu for part (c) are: greater than, less than, equal to