IT
20151104110410_SBST1303_PPT SLIDES_Topic 5.pptx

20151104110410_SBST1303_PPT SLIDES_Topic 5.pptx - TOPIC 5...

• Notes
• 15

This preview shows pages 1–6. Sign up to view the full content.

TOPIC 5: MEASURES OF DISPERSION

This preview has intentionally blurred sections. Sign up to view the full version.

LEARNING OBJECTIVES Describe the concept of dispersion measures; Explain the concept of range as a dispersion measure; Categorise the distribution curve by its symmetry and non-symmetry; Analyse the variance or standard deviation
INTERPRETATION Mean of distribution: location parameter . Locations of any two different distributions can be observed by looking at their respective means. R ange : coverage of a distribution Variance : measure the distribution of observations around their mean and hence the shape of a distribution curve . Small value of variance means the distribution curve is more pointed and the larger value of the variance indicate the distribution curve is more flat. Thus, variance is sometime being called shape parameter .

This preview has intentionally blurred sections. Sign up to view the full version.

RANGE Formula: Eg: Find the range of the following data set Set 1: 2, 3, 18, 22, 46, 32, 15 Set 2: 22, 33, 18, 22, 16, 24, 35, 18, 20, 19 Range of data set 1 : 46 - 2 = 44 Range of data set 2 : 35 - 16 =19
IQR AND SEMI IQR

This preview has intentionally blurred sections. Sign up to view the full version.

This is the end of the preview. Sign up to access the rest of the document.

{[ snackBarMessage ]}

What students are saying

• As a current student on this bumpy collegiate pathway, I stumbled upon Course Hero, where I can find study resources for nearly all my courses, get online help from tutors 24/7, and even share my old projects, papers, and lecture notes with other students.

Kiran Temple University Fox School of Business ‘17, Course Hero Intern

• I cannot even describe how much Course Hero helped me this summer. It’s truly become something I can always rely on and help me. In the end, I was not only able to survive summer classes, but I was able to thrive thanks to Course Hero.

Dana University of Pennsylvania ‘17, Course Hero Intern

• The ability to access any university’s resources through Course Hero proved invaluable in my case. I was behind on Tulane coursework and actually used UCLA’s materials to help me move forward and get everything together on time.

Jill Tulane University ‘16, Course Hero Intern