Compute the modal and median incomes

Assignment Help Basic Statistics
Reference no: EM1391839

The income distribution of a sample of 50 MTN subscribers in the Lagos area is as follows:

Income Number of
(N'000s) Subscribers

20 - 30 20
31 - 41 15
42 - 52 10
53 - 63 5

(a) Compute the arithmetic mean of the subscribers' incomes.

(b) Compute the modal and median incomes.

Reference no: EM1391839

Questions Cloud

Immediate spatial relationship of the left kidney : Determine what of the following describes the immediate spatial relationship of the left kidney to other structers on posterior abdominal?
Modal selling price of houses : (a) Find the median cost of houses at Coal City in 1988. (b) Find the modal selling price of houses at Coal City in 1988.
Exponential and normal distributions : he Department of Motor Vehicles (DMV) can service customers at a rate of 20 per hour (or 1/3 per minute) when it comes to license renewals. The service time follows an exponential distribution.
Surgeon pulls a loop of bowel : In surgery, a surgeon pulls a loop of bowel through a 4.2 inch incision in linea alba and inspected the surface. There were smally fatty appendages hanging around length of piece of bowel.
Compute the modal and median incomes : (a) Compute the arithmetic mean of the subscribers' incomes. (b) Compute the modal and median incomes.
Standardized to normal model with mean : Some IQ tests are standardized to normal model with mean of 100 and the standard deviation of 16. Draw a model for these IQ scores, clearly label it , showing what the 65-95-99.7 rule predicts about the score.
Write the weaknesses of current labour legislation : Workers can't truly be free in body and spirit unless their freedom extends into places where they earn their daily bread." (1935) Drawing on reading of NLRA write down the weaknesses of current labour legislation?
Tightening managerial control over the company : A motor transport company has 50 similar buses. The management suspects that its control of these vehicles is inadequate. What suggestions could you make for investigating vehicle use, and tightening managerial control over the company?
What are the mean-variance and standard deviation : A population is normally distributed with the mean of 100 and a standard deviation of Would it be unusual for mean of sample of 3 to be 115 or more? Why or why not?

Reviews

Write a Review

Basic Statistics Questions & Answers

  Probability in case of style of pottery

Santa Fe black on white is a style of pottery that occurs in about 61% of the pot shards found in the Bandelier National Monument area.

  Vote for the democratic incumbent

Using the 0.99 confidence coefficient, what are the confidence limits for the proportion that plan to vote for the Democratic incumbent.

  Binomial distribution in an appropriate model

In each of the following cases, decide whether or not a binomial distribution is an appropriate model, and give your reasons.

  Demand with four period moving average

Employ a four period moving average and determine the forecasted demand for August. Put your answer in the form xx.x with no additional numbers or symbols.

  Population mean weight of all turtles

Find a 90% confidence interval for the population mean weight of all such turtles.

  Minimizing cost of meeting demands

Find out how to minimize cost of meeting demands in Houston and Tampa.

  Checking of variables using the chi-square tests

Chi-square tests are great to show if distributions differ or if two variables interact in producing outcomes. What are some examples of variables that you might want to check using the chi-square tests? What would these results tell you?

  Find out the constant using probability density function

Find out the constant using probability density function also cumulative distribution function. Assume X be a continuous random variable with probability density function.

  Estimation of the proportion of hospital referrals

What size sample would be required to estimate the proportion of hospital referrals with a margin of error of 0.04 or less at 95% confidence?

  Related to the sample correlation coefficient

Explain what the coefficient of determination, R^2 (R-squared), measures. How is it related to the sample correlation coefficient?

  Degree of certainty independent of credits earned

At α = 0.01, is the degree of certainty independent of credits earned?

  Probability and sample mean

What is the probability that the sample mean will be greater than M = 510. In symbols, what is p (M>510)?

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