Ask Question, Ask an Expert

+1-415-315-9853

info@mywordsolution.com

Ask Statistics and Probability Expert

describe the mean and variance using the probability distribution.

Bill Russ, a production manager at Ross Co., maintains full records on the number of times each machine breaks down as well as requires service during the week. Bill records display that the Puret grinder has required repair service according to the subsequent distribution

Number of Breakdowns per week

Weeks

Probability

 

0

20

0.333

 

1

20

0.333

 

2

10

0.167

 

3

10

0.167

 

 

60

1.000

totals

a) find out the arithmetic mean number of breakdowns per week.                                            

b) find out the variance of the number of breakdowns per week.

Statistics and Probability, Statistics

  • Category:- Statistics and Probability
  • Reference No.:- M920150

Have any Question? 


Related Questions in Statistics and Probability

1 how many conditions are there in the simplest possible

1. How many conditions are there in the simplest possible experiment? 2. Describe how participants are assigned to conditions in randomized groups, matched-subjects, and repeated measures experimental designs. 3. What ar ...

Assume that the number of pieces of junk mail per day that

Assume that the number of pieces of junk mail per day that a person receives in their mail box follows the Poisson distribution and averages 3.5 pieces per day. What is the probability that this person will receive exact ...

Examine the history of american party politics from the

Examine the history of American party politics from the Great Depression through the 1990s. Trace the evolution of the major political parties, their policies, and their constituencies during this period.

The two-person game shown in table 1 has a unique nash

The two-person game shown in Table 1 has a unique Nash equilibrium (see Moulin and Vial, 1978) in which each player's expected payoff is 3.

Assume that you want to test the claim that the paired

Assume that you want to test the claim that the paired sample data come from a population for which the mean difference is μd = 0. Compute the value of the t test statistic. Round intermediate calculations to four decima ...

Researchers are interested in determining if men and womens

Researchers are interested in determining if men and women's hearts tend to be different sizes. In a sample of 12 males, the mean diameter of the heart was 13.21 cm with a standard deviation of 1.05. Among 9 females, the ...

Jenks co partially refunded 180000 of its outstanding 10

Jenks Co. partially refunded $180,000 of its outstanding 10% note payable, made 1 year ago to Arma State Bank by paying $180,000 plus $18,000 interest (having obtained the $198,000 by using $52,400 cash and signing a new ...

1 in stepwise regression why might a predictor variable

1. In stepwise regression, why might a predictor variable that correlates highly with the criterion variable not enter into the regression equation? 2. Explain how you would use regression analysis to see whether variabl ...

Problem 1somewhere in the milky way galaxy a class of 2000

Problem 1 Somewhere in the Milky Way Galaxy, a class of 2,000 students took a course in Astronomy.  The first exam scores and the final exam percentage reached earth, but transmission broke off after only a dozen student ...

Consider the following system of preferences recall that

Consider the following system of preferences (recall that the preferences of the women appear in the lower right side of each cell (read vertically) and the preferences of the men appear on the upper left side (read hori ...

  • 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

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

Describe what you learned about the impact of economic

Describe what you learned about the impact of economic, social, and demographic trends affecting the US labor environmen