Suppose 520 Chicago residents who have dined at Charlie Trotter's Restaurant in Chicago are asked to rate the restaurant according to price (medium or high) and food (1, 2, 3, or 4 stars). The results of this survey are presented in the table below. Use the table to answer all 3 questions 1 star 2 stars 3 stars 4 stars Total Medium 101 96 115 104 416 High 33 5 40 26 104 Total 134 101 155 130 520 1. Suppose a customer is selected at random. What is the probability that they rate the price of the restaurant as High or give the food 4 stars? [ Select] 2. You could determine if the events "a randomly selected customer rated the price as high" and "a randomly selected customer gave food 4 stars" were independent by comparing the P(High | 4 stars) with which of the following probabilities? [ Select ] 3. Based on all your calculations, the events "a randomly selected customer rated the price as high" and "a randomly selected customer gave food 4 stars" would be considered [ Select ]

MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
icon
Related questions
Topic Video
Question

Do question 2

Suppose 520 Chicago residents who have dined at Charlie Trotter's Restaurant in Chicago
are asked to rate the restaurant according to price (medium or high) and food (1, 2, 3, or 4
stars). The results of this survey are presented in the table below.
Use the table to answer all 3 questions
1 star
2 stars
3 stars
4 stars
Total
Medium
101
96
115
104
416
High
33
40
26
104
Total
134
101
155
130
520
1. Suppose a customer is selected at random. What is the probability that they rate the
price of the restaurant as High or give the food 4 stars? [ Select ]
2. You could determine if the events "a randomly selected customer rated the price as
high" and "a randomly selected customer gave food 4 stars" were independent by
comparing the P(High | 4 stars) with which of the following probabilities?
[ Select ]
3. Based on all your calculations, the events "a randomly selected customer rated the price
as high" and "a randomly selected customer gave food 4 stars" would be considered
[ Select ]
Transcribed Image Text:Suppose 520 Chicago residents who have dined at Charlie Trotter's Restaurant in Chicago are asked to rate the restaurant according to price (medium or high) and food (1, 2, 3, or 4 stars). The results of this survey are presented in the table below. Use the table to answer all 3 questions 1 star 2 stars 3 stars 4 stars Total Medium 101 96 115 104 416 High 33 40 26 104 Total 134 101 155 130 520 1. Suppose a customer is selected at random. What is the probability that they rate the price of the restaurant as High or give the food 4 stars? [ Select ] 2. You could determine if the events "a randomly selected customer rated the price as high" and "a randomly selected customer gave food 4 stars" were independent by comparing the P(High | 4 stars) with which of the following probabilities? [ Select ] 3. Based on all your calculations, the events "a randomly selected customer rated the price as high" and "a randomly selected customer gave food 4 stars" would be considered [ Select ]
Expert Solution
Step 1

Here we've to find P(High/4stars) 

So given that grad total= 520

If High and 4 stars are independent then

P(High/4stars)=P(High n 4stars)/P(4 stars)

= P(high)*P(4stars)/P(4 stars)

= P(high)

Total "high"= 104

 

trending now

Trending now

This is a popular solution!

steps

Step by step

Solved in 2 steps

Blurred answer
Knowledge Booster
Discrete Probability Distributions
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, statistics and related others by exploring similar questions and additional content below.
Recommended textbooks for you
MATLAB: An Introduction with Applications
MATLAB: An Introduction with Applications
Statistics
ISBN:
9781119256830
Author:
Amos Gilat
Publisher:
John Wiley & Sons Inc
Probability and Statistics for Engineering and th…
Probability and Statistics for Engineering and th…
Statistics
ISBN:
9781305251809
Author:
Jay L. Devore
Publisher:
Cengage Learning
Statistics for The Behavioral Sciences (MindTap C…
Statistics for The Behavioral Sciences (MindTap C…
Statistics
ISBN:
9781305504912
Author:
Frederick J Gravetter, Larry B. Wallnau
Publisher:
Cengage Learning
Elementary Statistics: Picturing the World (7th E…
Elementary Statistics: Picturing the World (7th E…
Statistics
ISBN:
9780134683416
Author:
Ron Larson, Betsy Farber
Publisher:
PEARSON
The Basic Practice of Statistics
The Basic Practice of Statistics
Statistics
ISBN:
9781319042578
Author:
David S. Moore, William I. Notz, Michael A. Fligner
Publisher:
W. H. Freeman
Introduction to the Practice of Statistics
Introduction to the Practice of Statistics
Statistics
ISBN:
9781319013387
Author:
David S. Moore, George P. McCabe, Bruce A. Craig
Publisher:
W. H. Freeman