Homework Help is Here – Start Your Trial Now!
Math
Probability
One year consumers spent an average of $21 on a meal at a resturant. Assume that the amount spent on a resturant meal is normally distributed and that the standard deviation is $6. Complete parts (a) through (c) below. a. What is the probability that a randomly selected person spent more than $25? P(X>$25) =O (Round to four decimal places as needed.) b. What is the probability that a randomly selected person spent between $4 and $20? P(S4

One year consumers spent an average of $21 on a meal at a resturant. Assume that the amount spent on a resturant meal is normally distributed and that the standard deviation is $6. Complete parts (a) through (c) below. a. What is the probability that a randomly selected person spent more than $25? P(X>$25) =O (Round to four decimal places as needed.) b. What is the probability that a randomly selected person spent between $4 and $20? P(S4

A First Course in Probability (10th Edition)
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...
See similar textbooks
icon
Related questions
Question
100%
One year consumers spent an average of $21 on a meal at a resturant. Assume that the amount spent on a resturant meal is normally distributed and that the standard deviation is $6. Complete parts (a) through (c) below. a. What is the probability that a randomly selected person spent more than $25? P(X > $25) = (Round to four decimal places as needed.) b. What is the probability that a randomly selected person spent between $4 and $20? P(S4 <X< $20) =| (Round to four decimal places as needed.) c. Between what two values, symmetrically distributed around the mean, will the middle 95% of the amounts of cash spent fall? The middle 95% of the amounts of cash spent will fall between X = S and X= $ (Round to the nearest cent as needed.)
Transcribed Image Text:One year consumers spent an average of $21 on a meal at a resturant. Assume that the amount spent on a resturant meal is normally distributed and that the standard deviation is $6. Complete parts (a) through (c) below. a. What is the probability that a randomly selected person spent more than $25? P(X > $25) = (Round to four decimal places as needed.) b. What is the probability that a randomly selected person spent between $4 and $20? P(S4 <X< $20) =| (Round to four decimal places as needed.) c. Between what two values, symmetrically distributed around the mean, will the middle 95% of the amounts of cash spent fall? The middle 95% of the amounts of cash spent will fall between X = S and X= $ (Round to the nearest cent as needed.)
Expert Solution
trending now

Trending now

This is a popular solution!

steps

Step by step

Solved in 4 steps

SEE SOLUTIONCheck out a sample Q&A here
Blurred answer
Similar questions
Recommended textbooks for you
A First Course in Probability (10th Edition)
A First Course in Probability (10th Edition)
Probability
ISBN:
9780134753119
Author:
Sheldon Ross
Publisher:
PEARSON
A First Course in Probability
A First Course in Probability
Probability
ISBN:
9780321794772
Author:
Sheldon Ross
Publisher:
PEARSON
SEE MORE TEXTBOOKS