Already have an account? Get multiple benefits of using own account!
Login in your account..!
Remember me
Don't have an account? Create your account in less than a minutes,
Forgot password? how can I recover my password now!
Enter right registered email to receive password!
Measures of Dispersion (Variation)
A measure of dispersion is to measure the spread among values of observations in a data set. There are three commonly used measures of dispersion: variance, range and standard deviation.
Range
Range is the easiest measure of dispersion. It is the difference amongst the largest and the smallest value of observations in a data set.
Range = Largest value -Smallest value
Example
Calculate the range of the following data:
Students Exam marks
A 80
B 67
C 44
D 57
E 92
F 79
Solution:
= 92 - 44 = 48
The range is very easy to compute, but because it depends only on the largest and the smallest values, it is not as useful as the other measures of the variation which use every value.
Explain different index numbers
Company hopes to improve customer satisfaction, setting a goal of no more than 5% negative comments. A random survey of 350 customers found only 14 with complaints. Does this provi
Isotopes Elements having same atomic number Z, but different A mass number for example 126C, 146C and 11H 21H, 31H are isotopes of carbon and hydrogen. Isotones Elements havi
5,2,5,8,9,9,8,7,5,2
While the differences between IFRS and GAAP are reducing, there still are significant differences between the two. While the IFRS has been developed by the IASB (International A
Hi, do you do correlation assignment
the correlation between olympic gold medal times for the 1500 m run and year is -0.941 seconds per year
Mention the characteristics of statistics. Explain any two application of Statistics
Refund can be defined as return of a part of a purchase price by a seller to a buyer, usually on a purchase of a specified quantity or a value of goods within a specified period.
how to find decile
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!
whatsapp: +1-415-670-9521
Phone: +1-415-670-9521
Email: [email protected]
All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd