Ask Question, Ask an Expert

+1-415-315-9853

info@mywordsolution.com

Ask Statistics and Probability Expert

The following frequency distribution reports electricity cost for sample of 50 two-bedroom apartments in Albuquerque, New Mexico throughout the month of May last year.

Electricity Cost

Frequency

$ 80 up to $100

3

100 up to 120

8

120 up to 140

12

140 up to 160

16

160 up to 180

7

180 up to 200

4

    Total

50

a) Determine the mean cost.

b) Determine the standard deviation.

c) Use the Empirical Rule to estimate the proportion of costs in two standard deviations of mean. What are these limits?

Statistics and Probability, Statistics

  • Category:- Statistics and Probability
  • Reference No.:- M918169

Have any Question? 


Related Questions in Statistics and Probability

It is estimated 30 of all adults in united states invest in

It is estimated 30% of all adults in United States invest in stocks and that 88% of U.S. adults have investments in fixed income instruments (savings accounts, bonds, etc.). It is also estimated that 25% of U.S. adults h ...

1 an investigator wants to determine if a new program aimed

1. An investigator wants to determine if a new program aimed at reducing the overall number of pregnancies in a highly populated area is effective (reducing average births below 6 per household). In order to carry out th ...

A smartphone company has to decide which battery they will

A smartphone company has to decide which battery they will use for their upcoming model. Two battery manufacturers A and B are competing to get the contract. 15 smartphones of the upcoming model were tested with batterie ...

Plot four different regression graphs x v y tomatometer v

Plot four different regression graphs (X v Y): Tomatometer v Audience, Budget v Gross, Budget v Tomatometer, Audience v Gross and find the best-fit line equation and correlation coefficient (r-value) for each one. X repr ...

Records show that 13 of all college students are foreign

Records show that 13% of all college students are foreign students who also smoke. It is also known that 25% of all foreign college students smoke. What percent of the students at this university are foreign?

What was polks plan for the conduct of the war what were

What was Polk's plan for the conduct of the war? What were the objectives of the American offensives in the war? How did Generals Zachary Taylor and Winfield Scott approach the problem of fighting the Mexican Army over s ...

Assignmentstatistical analysisdirections be sure to save an

ASSIGNMENT Statistical Analysis Directions: Be sure to save an electronic copy of your answer before submitting it to Ashworth College for grading. Unless otherwise stated, answer in complete sentences, and be sure to us ...

Applicationcomparing software development

Application Comparing Software Development Workloads Estimating the cost of developing software in terms of work load is difficult since it is a challenge to quantify the size and complexity of a software system. The art ...

A cotton grower in south georgia produces cotton on farms

A cotton grower in South Georgia produces cotton on farms in Statesboro and Brooklet, ships it to cotton gins in Claxton and Millen where it is processed, and then sends it to distribution centers in Savannah, Perry, and ...

A company manufactuirng compter chip finds that 8 of all

A company manufactuirng compter chip finds that 8% of all chips manufactured are defective. Management is concerned that high employee turnover is partially responsible for the high defect rate. In an effort to decrease ...

  • 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