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

Survival analysis and regression for rates, This assignment counts for 40% ...

This assignment counts for 40% of the total grade for the subject.  There are 100 marks for the assignment.  Including figures and tables, it should be no more than 10 pages. Yo

Variance analysis , Terry Co. manufactures a commercial solvent that is use...

Terry Co. manufactures a commercial solvent that is used for industrial maintenance. This solvent is sold by the drum and generally has a stable selling price. Due to a decrease in

To find first quartile, how to find 1st quartile from the graph of more tha...

how to find 1st quartile from the graph of more than ogive type, please reply me with an example

one-way anova and hypothesis , Suppose we wanted to compare the somatic co...

Suppose we wanted to compare the somatic complaints (as measured on a scale known as the Physical Symptom Survey or PSS) of three groups of people; nonsmokers, smokers, and people

Qualitative survey and data analysis, Data Analysis: A qualitative surve...

Data Analysis: A qualitative survey was conducted in order to understand the impact of international accounting standards. To start with, a secondary research was done to unders

Probability, the probability that you win a game is 0.3. if you play the ga...

the probability that you win a game is 0.3. if you play the game 20 times. what is the probability that you will win at least 8 times?

Help with homework, 1. Penny Pincher, Inc. had a contribution margin of $33...

1. Penny Pincher, Inc. had a contribution margin of $33,000 on sales of $50,000 and had fixed costs of $18,000. Calculate its break-even point in sales dollars. 2. Krueger Company

Impulse-momentum theorem, Impulse and Momentum Theorem   Impulse is known...

Impulse and Momentum Theorem   Impulse is known as the change in momentum of any object:  j  = Δ p   Momentum  is a product of the mass & the velocity of an object, and is a v

Rehearsal methods, A teacher is interested in comparing the effects of 3 di...

A teacher is interested in comparing the effects of 3 different parts of rehearsal methods (Rote rehearsal, Imagery, and Story) on number of words recalled. Participants are random

Paasche` quantity index calculationca, Base year price 10,12,18,20 and quan...

Base year price 10,12,18,20 and quantity 49,25,10,5 respectively. current yr quantity 50,20,12& 2

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