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

Candida has a revolving credit account at an annual

Candida has a revolving credit account at an annual percentage rate of 24%. Her previous monthly balance is $549.79. Find the new balance using the previous month's balance method if Candida's account showed the followin ...

The condorcet method the french mathematician condorcet

The Condorcet Method The French mathematician Condorcet proposed the following method for determining a social preference order based on the strict preferences of the individuals in society. A voter i with a strict prefe ...

Final stats paper the final paper provides you with an

Final Stats Paper The final paper provides you with an opportunity to integrate and reflect on what you have learned in this course. The question to address is: "What have you learned about statistics?" In developing you ...

1 explain how you would use a manipulation check to

1. Explain how you would use a manipulation check to determine whether you successfully manipulated room temperature in a study of temperature and aggression. 2. Distinguish between an independent variable and a subject ...

1 distinguish between theory model and hypothesis2 describe

1. Distinguish between theory, model, and hypothesis. 2. Describe how researchers use induction versus deduction to generate research hypotheses. 3. Describe the process by which hypotheses are developed and tested.

It is noted that research falls into four basic categories

It is noted that research falls into four basic categories, depending on whether the goal is to describe patterns of behavior, thought, or emotion (descriptive research); to examine the relationship among naturally occur ...

Throughout the early 1800s the influence of

Throughout the early 1800's the influence of industrialization and the repeated subjugation of Native Indians and slaves caused people to reflect on their role in society and attempt to reform elements of their daily liv ...

1 travelers are asked how many hours they are willing to

1. Travelers are asked how many hours they are willing to drive while on vacation in one day. A total of 86 travelers reported a mean of 11.55 hours with a standard deviation of 1.2 hours. Find the 99% confidence interva ...

A new process is proposed for the manufacture of steel

A new process is proposed for the manufacture of steel shafts, Data are 6.38, 6.40, 6.41, 6.38, 6.39, 6.36 and 6.37. Target is 6.40. a. What is the expected loss? b. What is the standard deviation?

George john and thomas are standing first second and third

George, John, and Thomas are standing first, second, and third in a line, respectively. Each one sees the persons standing in front of him. James announces: "I have three red hats and two white hats. I will place a hat o ...

  • 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