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

Accounting rate of return, Ghosh Ltd is considering expanding its business ...

Ghosh Ltd is considering expanding its business and has to decide between taking on Project A or Project B. Both projects have a life of four years. Equipment is expected to have

IFRS, I am currently doing a report on IRFS and have to identify the the is...

I am currently doing a report on IRFS and have to identify the the issues involved with businesses adopting IRFS

Exploratory analysis of the data, The Home Improvement Company (HIC) operat...

The Home Improvement Company (HIC) operates five stores in a large regional area. The company wished to study the relationship between x, house value ($'000) and Y, yearly expendit

What is budget control, Definition of budget control as management of costs...

Definition of budget control as management of costs & expenses with examples. Budget control is the management of costs & expenses in accordance with an underlying budget.

Homework help, example of descriptive statistics in word form

example of descriptive statistics in word form

Histogram and historigram, show the differences between histogram and histo...

show the differences between histogram and historigram

Determine the price rate-demand , SkyyMarley Airlines has determined that t...

SkyyMarley Airlines has determined that the price elasticity of demand for two customer segments (Coach and Business Class) is -1.35 and -2.50.  Based on their expectations of prof

Which date is used to record a credit card transaction, Which date is used ...

Which date is used to record a credit card transaction? When a company uses its bank greeting cards, the transaction time frame is the time frame the bank greeting cards is used

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