Discrete Standard Deviation, Statistics, Basic Statistics

Assignment Help:
Discrete Standard Deviation

For calculating standard deviation in discrete series any of the following methods may be applied

(1) Actual mean method.

(2) Assumed mean method.

(3) Step deviation method.

(a) Actual mean methods when this method is applied deviations are taken from the actual mea we find (X-X) and denote these deviations by x. These deviations are then squared and multiplied by the respective frequencies. The following formula is applied:

s = v S fx2 /N where x = (X – X)

However in practice this method is rarely used because if the actual mean is in fractions the calculations take a lot of time.

(b) Assumed mean method when this method is used the following for mule is applied

S = v {fd2 / N – ({ fd/N)2 where d = (x – A)

Steps

Take the deviations of the items form an assumed mean and denote there deviation by d.

Multiply these deviations by the respective frequencies and obtain the total { fd.

Obtain the squares of the deviations calculate d2. Multiply the squared deviations by the respective frequencies an obtain the total {fd2.

Substitute the value in the above formula

Related Discussions:- Discrete Standard Deviation, Statistics

Create a spreadsheet model and determine linear regression, 1. MMC's CEO, D...

1. MMC's CEO, Dr. Warren A. Beatty (Not the actor) believes that the demand trend for MMC is essentially linear. Thus, he wishes to determine if linear regression would be an effec

Midterm & final exams , Can you all help with midterms and final exams? mea...

Can you all help with midterms and final exams? meaning getting the assignment done within a couple hours?

Regression, Consider a multiple regression model Y=ß0+ß1X1+ß2X2+µ The sampl...

Consider a multiple regression model Y=ß0+ß1X1+ß2X2+µ The sample data yields the following matrices: X’X= { ¦(33&0&0@0&40&0@0&20&60) } Y’X=¦((132&24&92)) ?(y-Y)2 =150 a. what

Assingment, who we complete accounting cycile

who we complete accounting cycile

Probability, A manufacturer of VCRs plans to purchase a particular componen...

A manufacturer of VCRs plans to purchase a particular component from suppliers A, B and C. 30% of the components are to be purchased from A, 20% from B and 50% from C. In the past,

Introduction to statistical framework, advantages and disadvantages of inte...

advantages and disadvantages of integrated economic statistics

Income tax expense, I''m not sure how to calculate the income tax expense.

I''m not sure how to calculate the income tax expense.

Online homework, I need help with online accounts homework.

I need help with online accounts homework.

Calculate regression analysis, Questions In a regression analysis, a nu...

Questions In a regression analysis, a nurse researcher found a correlation of .82 between pain relief scores and satisfaction with nursing care.  She also calculated the follow

Write Your Message!

Captcha
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