A consumer survey indicates that the average household spends μ = $155 on groceries each week. The distribution of spending amounts is approximately normal with a standard deviation of σ=$25. a. what proportion of the population spends more than $175 per week on groceries? b. what is the probability of randomly selecting a family that spends less than $100 per week groceries? c. how much money do you need to spend on groceries each week to be in the top 20% of the distribution?
A consumer survey indicates that the average household spends μ = $155 on groceries each week. The distribution of spending amounts is approximately normal with a standard deviation of σ=$25. a. what proportion of the population spends more than $175 per week on groceries? b. what is the probability of randomly selecting a family that spends less than $100 per week groceries? c. how much money do you need to spend on groceries each week to be in the top 20% of the distribution?
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.4: Distributions Of Data
Problem 19PFA
Related questions
Question
A consumer survey indicates that the average household spends μ = $155 on groceries each week. The distribution of spending amounts is approximately normal with a standard deviation of σ=$25.
a. what proportion of the population spends more than $175 per week on groceries?
b. what is the probability of randomly selecting a family that spends less than $100 per week groceries?
c. how much money do you need to spend on groceries each week to be in the top 20% of the distribution?
Expert Solution
This question has been solved!
Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.
This is a popular solution!
Trending now
This is a popular solution!
Step by step
Solved in 3 steps with 4 images
Knowledge Booster
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
Glencoe Algebra 1, Student Edition, 9780079039897…
Algebra
ISBN:
9780079039897
Author:
Carter
Publisher:
McGraw Hill
Big Ideas Math A Bridge To Success Algebra 1: Stu…
Algebra
ISBN:
9781680331141
Author:
HOUGHTON MIFFLIN HARCOURT
Publisher:
Houghton Mifflin Harcourt
Glencoe Algebra 1, Student Edition, 9780079039897…
Algebra
ISBN:
9780079039897
Author:
Carter
Publisher:
McGraw Hill
Big Ideas Math A Bridge To Success Algebra 1: Stu…
Algebra
ISBN:
9781680331141
Author:
HOUGHTON MIFFLIN HARCOURT
Publisher:
Houghton Mifflin Harcourt