Compute the mean number of postal mails per day

Assignment Help Basic Statistics
Reference no: EM132331977

The following table contains the probability distribution for the number of daily postal mails distributed in a small town

Number of postal mails daily

(Xi) P(X=xi)

0 0.10

1 0.20

2 0.45

3 0.15

4 0.05

5 0.05

a. Compute the mean number of postal mails per day.

b. Compute the standard deviation.

Reference no: EM132331977

Questions Cloud

Confidence interval for the mean suppertime : Construct and interpret a 98% confidence interval for the mean suppertime of a vampire bar whose meal consist of a frong
Sealed pressure vessel of constant volume : A sealed pressure vessel of constant volume (V = 1 m3) is filled entirely with fluid at atmospheric pressure (Pi= 101 kPa)
Discuss the manipulation of imagery for targeted application : F/601/6311-Cultural Interpretation in Graphic Design-BH027165 – Edexcel BTEC Levels 4 and 5 Higher Nationals specification in Art and Design
State the null and alternative hypothesis : A random sample of 32 second-grade children had a mean reading time of 122.7 letters per minute with a standard deviation of 11.8 letters per minute.
Compute the mean number of postal mails per day : The following table contains the probability distribution for the number of daily postal mails distributed in a small town
Proportion of voters in favor of the proposal : There was a ballot proposal regarding a merger of two towns. In a random sample of 600 voters, 378 voters indicated that they were in favor of the proposal.
Identify communication methods used in graphic design : D/601/6395- Visual Communication in Graphic Design-BH027165 – Edexcel BTEC Levels 4 and 5 Higher Nationals specification in Art and Design.
Keep the operation in the long-run : What is the minimum daily revenue to keep operation in the short-run? What is the minimum daily revenue to keep the operation in the long-run?
Explain the historic origins and manifestations of corporate : L/601/6313 -Corporate Identity in Graphic Design-BH027165 – Edexcel BTEC Levels 4 and 5 Higher Nationals specification in Art and Design.

Reviews

Write a Review

Basic Statistics Questions & Answers

  Statistics-probability assignment

MATH1550H: Assignment:  Question:  A word is selected at random from the following poem of Persian poet and mathematician Omar Khayyam (1048-1131), translated by English poet Edward Fitzgerald (1808-1883). Find the expected value of the length of th..

  What is the least number

MATH1550H: Assignment:  Question:     what is the least number of applicants that should be interviewed so as to have at least 50% chance of finding one such secretary?

  Determine the value of k

MATH1550H: Assignment:  Question:     Experience shows that X, the number of customers entering a post office during any period of time t, is a random variable the probability mass function of which is of the form

  What is the probability

MATH1550H: Assignment:Questions: (Genetics) What is the probability that at most two of the offspring are aa?

  Binomial distributions

MATH1550H: Assignment:  Questions:  Let’s assume the department of Mathematics of Trent University has 11 faculty members. For i = 0; 1; 2; 3; find pi, the probability that i of them were born on Canada Day using the binomial distributions.

  Caselet on mcdonald’s vs. burger king - waiting time

Caselet on McDonald’s vs. Burger King - Waiting time

  Generate descriptive statistics

Generate descriptive statistics. Create a stem-and-leaf plot of the data and box plot of the data.

  Sampling variability and standard error

Problems on Sampling Variability and Standard Error and Confidence Intervals

  Estimate the population mean

Estimate the population mean

  Conduct a marketing experiment

Conduct a marketing experiment in which students are to taste one of two different brands of soft drink

  Find out the probability

Find out the probability

  Linear programming models

LINEAR PROGRAMMING MODELS

Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd