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

Calculate the maximum hourly rate, Question: Sharp Discounts Who...

Question: Sharp Discounts Wholesale Club has two service desks with one server at each desk.  There is one desk at each entrance of the store.  Customers arrive at each

What is the cumulative distribution function, The waiting time for an incom...

The waiting time for an incoming call at the front desk of mathematics Department follows an exponential distribution. During business hours, the average of the waiting times is 10

Assignment, An experiment succeeds twice as often as it fails. Find the cha...

An experiment succeeds twice as often as it fails. Find the chance that in the next six trials there will be at least four successes

Calculate the rates of return and standard deviations, 1. Stock A and B hav...

1. Stock A and B have the following probability distributions: ECONONOMY                    PROBABILITY                      K(A)                       K(B) Boom

Statistics, Question 1 A courier company conducted a brainstorming sessio...

Question 1 A courier company conducted a brainstorming session amongst drivers to ascertain the reasons why it was unable to deliver items to households, always right first time.

Binomial expansion, what is the largest coefficient of (1+3x)^4 is ?

what is the largest coefficient of (1+3x)^4 is ?

Concept of depreciation briefly, concept of Depreciation briefly. The pr...

concept of Depreciation briefly. The primary idea of the Depreciation is to create off the value of worried resources by a certain amount as per prescribed. Devaluation is incur

Compute the outlier diagnostics, Use the following four data sets for probl...

Use the following four data sets for problem 1.  Be aware that this is a very interesting series of data sets with some special properties. I do not have data files for these data,

Hitorigrams, difference between historigrams and histogram

difference between historigrams and histogram

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