The monthly expenditures on grocery shopping for all households in a town has a mean of $400 and a standard deviation of 75. The distribution of these monthly expenditures is symmetric and bell-shaped. What percentage of households had a monthly expenditure of between $325 and $400 on groceries in this town? O 99.7% O 68%

The monthly expenditures on grocery shopping for all households in a town has a mean of $400 and a standard deviation of 75. The distribution of these monthly expenditures is symmetric and bell-shaped. What percentage of households had a monthly expenditure of between $325 and $400 on groceries in this town? O 99.7% O 68%

Name: The monthly expenditures on grocery shopping for all households in a
Uploaded: 2024-03-20T07:07:12.000Z
Channel: Bartleby
Description: The monthly expenditures on grocery shopping for all households in a town has a mean of $400 and a standard deviation of 75. The distribution ofthese monthly expenditures is symmetric and bell-shaped. What percentage of households had a monthly expe

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

See similar textbooks

Similar questions

In the table below, the distribution of the height of 100 students is given. According to this; a. mean deviation b. Find the variance and standard deviation?
Cumulative Review 9. The list shows the number of text messages 5 students sent on Tuesday. 15, 45, 70, 30, 120 What is the mean absolute deviation of the 5 text messages? A. 31.2 C. 54 B. 57 D. 1.2
Find the mean and the mean deviation about mean from the following frequency distribution : Weight 50 55 60 65 70 Total No. of persons 1 4 2 2 1 10
A violin student records the number of hours she spends practicing during each of nine consecutive weeks: 6.2 5.0 4.3 7.4 5.8 7.2 8.4 1.2 6.3 What is the mean number of hours spent practicing per week during this period? a. 6.20 hours b. 6.15 hours c. 8.40 hours d. 5.76 hours
Subject: algbera
The salaries of 1200 pro athletes form a normal distribution with a mean of $79,000 and a standard deviation of $30,000. A "superstar" is defined as anybody in the top 2% of the salary distribution. What is the minimum salary of a superstar? Select one: a. $85,150 b. $140,500 c. $209,000 O d. $109,000
Suppose that a histogram is constructed for the frequency distribution shown below.
3. What is the value that corresponds to the 60th percentile in the following data set? Use linear interpolation. 80 68 53 58 76 O A. 79 O B. 79.6 O C. 80 O D. 80.6 73 85 88 91 79
Find the mean,' mode, standard deviation and co-effi- cient of skewness for the following : Years under 10 20 30 40 50 60 : No. of persons 109 15 32 51 78 97 :
QUEST A set of final examination grades in a calculus course was found to be normally distributed with a mean of 69 and a standard deviation of 9. The top 15% of the students taking the test scored will receive a grade of B. What is the cur score?
Suppose that you are using independent samples to compare two population proportions. Fill in the blanks. a. The mean of all possible differences between the two sample proportions equals the_______.b. For large samples, the possible differences between the two samplel proportions have approximately a_________distribution.
Find the standard deviation of the sample data below: 3,5,6,9 (Answer: 1 decimal place) Type your answer... Previous