Ask Question, Ask an Expert

+1-415-315-9853

info@mywordsolution.com

Ask Statistics and Probability Expert

Find the mean, median, mode IQR, Q1, Q3 and standard deviation.

A large philanthropic organization keeps records on the people who have contributed to their cause. In addition to keeping records of past giving, the organization buys demographic data on neighbourhoods from the U.S Census Bureau. Eighteen of these variables concern the ethnicity of the neighbourhood of the donor. Here are histogram and summary statistics for the percentage of whites in the neighbourhoods of 500 donors:

624_the mean, median, mode IQR, Q1, Q3.jpg

Count

500

Mean

83.59

Median

93

stdDev

22.26

IAR

17

Q1

80

Q3

97

a) Which is a better summary of the percentage of white residents in the neighbourhoods, the mean or the median? describe.

b) Which is a better summary of the spread, the IQR or the standard deviation? describe

c) From a normal model, about what percentage of neighbourhood should have a percent white within one standard deviation of the mean?

d) What percentage of neighbourhoods actually has a percent white within one standard deviation of the mean?

e) Describe the discrepancy between parts c and d.

Statistics and Probability, Statistics

  • Category:- Statistics and Probability
  • Reference No.:- M920881

Have any Question? 


Related Questions in Statistics and Probability

Measures of central tendency summative taskon a separate

Measures of Central Tendency Summative Task On a separate paper hand out the solution of the two parts of the investigation: Part One - Use the given data set to solve the following problems: 50, 55, 60, 60,70, 80 A. Fin ...

Consider the following gameyou pay 100 and a fair 6-sided

Consider the following game. You pay $1.00 and a fair 6-sided die is rolled. If the roll is 1 or 3, then you get your dollar back and the game ends. If the roll is 5, you get $2.00 back (your dollar plus an additional do ...

Develop a research question that addresses one of the

Develop a research question that addresses one of the unknowns in the question: Positive interactions between the CEO and board members lead to enhanced and better performance of the Corporation . Address the following 1 ...

According to harpers index 55 of all federal inmates are

According to Harper's Index, 55% of all federal inmates are serving time for drug dealing. A random sample of 15 federal inmates is selected. (a) What is the probability that 9 or more are serving time for drug dealing? ...

How might one relate einsteins theory of relativity to

How might one relate Einstein's theory of relativity to mathematical perspective in art?

1 consider the circumstances under which a

1. Consider the circumstances under which a repeated-measures experimental research design, rather than a between-participants experimental design, might be more or less appropriate. 2. Explain what counterbalancing refe ...

Starting in 1998 a series of credit card usage studies have

Starting in 1998, a series of credit card usage studies have been performed by Sallie Mae, a major provider of educational loans and savings programs. In a recent pilot study, a random pool of 122 loan applicants attendi ...

Let f be a social welfare function satisfying the

Let F be a social welfare function satisfying the independence of irrelevant alternatives property, and let a, b be two distinct alternatives. Let P N and QN be two strict preference profiles satisfying a> Pi b ⇔ a>Q i b ...

Determine the linear regression model to predict the cost

Determine the linear regression model to predict the cost of a house. Given that the 145 is the estimated mean value of Y when X is zero and 7.4 is the estimated mean value of Y for every one unit change in X.

In a random sample of 10 reduced fat chocolate chip cookies

In a random sample of 10 reduced fat chocolate chip cookies, the sample mean for the number of chocolate chips was 17.6.  Regular chocolate chip cookies have a mean number of 20 chocolate chips.  The population standard ...

  • 4,153,160 Questions Asked
  • 13,132 Experts
  • 2,558,936 Questions Answered

Ask Experts for help!!

Looking for Assignment Help?

Start excelling in your Courses, Get help with Assignment

Write us your full requirement for evaluation and you will receive response within 20 minutes turnaround time.

Ask Now Help with Problems, Get a Best Answer

WalMart Identification of theory and critical discussion

Drawing on the prescribed text and/or relevant academic literature, produce a paper which discusses the nature of group

Section onea in an atwood machine suppose two objects of

SECTION ONE (a) In an Atwood Machine, suppose two objects of unequal mass are hung vertically over a frictionless

Part 1you work in hr for a company that operates a factory

Part 1: You work in HR for a company that operates a factory manufacturing fiberglass. There are several hundred empl

Details on advanced accounting paperthis paper is intended

DETAILS ON ADVANCED ACCOUNTING PAPER This paper is intended for students to apply the theoretical knowledge around ac

Create a provider database and related reports and queries

Create a provider database and related reports and queries to capture contact information for potential PC component pro