Mean-standard deviation of distribution for number of tvs

Assignment Help Basic Statistics
Reference no: EM13131949

The relative frequency distribution of the number of TVs sold in a day in a department store in the last year is as follows:

Number of TV sold 1 2 3 4 5
Relative Frequency 0.15 0.2 0.5 0.1 0.05

Compute the mean and standard deviation of this distribution.

Reference no: EM13131949

Questions Cloud

Calculate the upper and lower control limits : The process is monitored using a sample size of 20. Calculate the upper and lower control limits. Give your answers to 2 decimal places.
Determining absolute convergence test : Let the sum from n=m to infinity of a_n be a formal series of real numbers. If this series is absolutely convergent, then it is also conditionally convergent.
Why vial-tek may desire to have an audit : Vial-tek has an existing loan in the amount of 3.5 million with an annual interest rate of 9.5%. The company provides an internal company prepared financial statement to the bank under the loan agreement.
Give example a general difference in enthalpy : Sn2 requires a strong nucleophile while E2 requires a strong base. But relatively compared if you have a very strong base the E2 is preferred. Why is it so?
Mean-standard deviation of distribution for number of tvs : The relative frequency distribution of the number of TVs sold in a day in a department store in the last year is as follows: Compute the mean and standard deviation of this distribution.
Performing accounting and review services : Jones, CPA, entered into a signed contract with Foster Corp. to perform accounting and review services. If Jones repudiates the contract prior to the date performance is due to begin, which of the following is false?
Proof infinite series : Let the sum from n=m to infinity of a_n be a series of real numbers converging to x, and let k be an integer. Then the sum from n=m+k to infinity of a_n-k also converges to x.
Expected risk and return on individual securities : The expected risk and return on individual securities are two of the most important measures of attractiveness. Precisely and completely explain how the expected return and standard deviation of the returns on individual securities are determined ..
Proof of zero test for sequences : Let (a_n) evaluated from n=M to infinity be a sequence of real numbers. Then the limit lim as n-->infinity of a_n exists and is equal to zero if and only if the limit lim as n-->infinity of the absolute value of a_n exists and is equal to zero.

Reviews

Write a Review

Basic Statistics Questions & Answers

  Fundamentals of chebyshev theorem

When using the normal distribution (empirical rule) to obtain the bounds for a 99.73 percent of the values in a population, the interval generall will be _________________ the interval obtained for the same percentage if Chebyshev's theorem is ass..

  Determining mean and standard deviation ofdistribution

Determine the mean and standard deviation of this distribution?

  People receiving and waiting to receive information

A new shopping mall is considering setting up an information desk manned by one employee. Based upon information obtained from similar information desks, it is believed that people will arrive at the desk at the rate of 15 per hour.

  What to prove to exceed goal

If 485 out of the next 500 orders are processed on the same day, would this prove that they are exceeding their goal, using α = .025?

  Difference in variation in sales among aisle location

At 0.05 level of significance, is there evidence of noteworthy difference in variation in sales among different aisle locations?

  Find out e(x), the expected value of x

An experiment consists of flipping the fair coin three times and noting the number of heads and tails. A random variable  x  is defined to be two times the number of heads plus the number of tails.

  Determine the probability call lasted for seconds

Determine the probability that particular call lasted between 110 and 180 seconds?

  Shape of sampling distribution of sample mean

Suppose that the lives of all such bulbs have a normal distribution with a mean of 750 hours and a standard deviation of 55 hours. Let x (sample mean) be the mean life of range sample of 25 such bulbs.

  Probability group of four smokers using gum quits smoking

If 60 percent of those people chewing the gum are successful in stopping smoking, what is the probability that in a group of four smokers using the gum at least one quits smoking?

  Evaluation using a chi-square test for goodness of fit

The data show that 48 of the doctors picked Brand X. If these data are evaluated using a chi-square test for goodness of fit, what is the expected frequency for Brand X?

  How data represent dependent or independent samples

Would the resulting sets of data represent dependent or independent samples? Why? What could the students change in the project to have it represent the other?

  What they mean in context of your favorite channel

In this forum post provide your results also elucidate what they mean in context of your favorite channel. To find 95 percent confidence interval for given data.

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