Answered: Day M T W R F Sat Sun Sales 25 43 62 36…

Day M T W R F Sat Sun Sales 25 43 62 36 46 87 56 Given that the average on a certain random day was higher than $50, what is the probability that this was Saturday? a. 1/3 b. 3/7 c. 5/7 d. 2/3 e. 2/7

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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Concept explainers

Average

In mathematics, everyone must have heard the term average in one place or other. Almost all types of calculation require taking out an average. In everyday life, the term is used for denoting a certain amount that can be said to be a typical quantity for multiple people or objects. In other words, if a group of people possesses a certain object, then the average gives us an idea regarding the quantity of the object possessed by each person. However, this is solely based on mathematical calculation. It is important to note that most people will not strictly have the average value in a group.

Question

Your lemonade stand made sales during the past week as follows.

Day	M	T	W	R	F	Sat	Sun
Sales	25	43	62	36	46	87	56

Given that the average on a certain random day was higher than $50, what is the probability that this was Saturday?

a. 1/3

b. 3/7

c. 5/7

d. 2/3

e. 2/7

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