Measures of dispersion

Question 0

The simplest measure of dispersion.

Difference between the highest and lowest values,

Answer 0

Range

Question 1

Also called measures of spread or variation.
Refers to the spread of the values around the central tendency. Indicates how the values disperse or spread around the average,

Answer 1

Measures Of dispersion

Question 2

Range formula?

Answer 2

Highest range - lowest range = range

Question 3

It is a measure of the spread of data around their mean.
The positive square root of the variance
Always positive

Answer 3

Standard deviation

Question 4

Bell shaped distribution curve also known as?

Answer 4

Normal or Gaussian distribution

Question 5

A set if values that is the average of squared deviations from the mean.

Answer 5

Variance

Question 6

When using median as centrality measure we can describe variability by providing range or using…?

Answer 6

Semi inter quartile range

Question 7

It is the measure of relative variation
It is independent of units
Used for comparing sets of measurements of different units

Answer 7

Coefficient of variation CV