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

Each of the following sentences violates a basic rule of

Each of the following sentences violates a basic rule of report writing. Indicate the relevant difficulty in each case. a. "The scale was coded to assess optimism, or lack thereof, in the participants." b. "Seven of the ...

1 what is the difference between descriptive and

1. What is the difference between descriptive and inferential statistics? 2. Describe the most common descriptive statistics. 3. What are standard scores, and how are they calculated? 4. What is meant by an unbiased esti ...

The western way of war thesis posits that western societies

The Western Way of War thesis posits that western societies throughout history have generally fought wars in fundamentally similar ways. The precise elements of the Western Way of War are described succinctly in Geoffrey ...

Consider repair costs for car a and car b the mean repair

Consider repair costs for Car A and Car B. The mean repair cost for each is $500 per year. Which statistics about repair costs may play into your decision to purchase one of these cars? Which car would you choose? Explai ...

Find the indicated area under the standard normal curve to

Find the indicated area under the standard normal curve. To the left of z= - 1.96 The area to the left of z = -1.96 under the standard normal curve is __.(Round to four decimal places as needed.)

When conducting a hypothesis test if z calculated is less

When conducting a hypothesis test, if z calculated is less than z critical, you should accept the null hypothesis?

1 you wish to learn the proportion of mba students that are

1.) You wish to learn the proportion of MBA students that are female within 3%, and with 98% confidence. How large of a sample should you get? 2.) You wish to learn the average age of an MBA student within 2 years and wi ...

Please show the work step by step to make it

Please show the work step by step to make it understandable. A random sample of 16 students showed that the variance in the number of hours they spend studying for a final exam was 25 hours 2 Part a. Construct a 95% conf ...

Packages of sugar bags for sweeter sugar inc have an

Packages of sugar bags for Sweeter Sugar Inc. have an average weight of 10 ounces and a standard deviation of 0.2 ounces. The weights of the sugar bags are normally distributed. What is the probability that 16 randomly s ...

A real number x is randomly chosen from the interval 010

A real number X is randomly chosen from the interval [0,10], dividing the interval into a left and a right side. Find the probability that the left side is at least four times as big as the right.

  • 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