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Flashcards in Measures of dispersion Deck (8)
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0
Q

The simplest measure of dispersion.

Difference between the highest and lowest values,

A

Range

1
Q

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,

A

Measures Of dispersion

2
Q

Range formula?

A

Highest range - lowest range = range

3
Q

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

A

Standard deviation

4
Q

Bell shaped distribution curve also known as?

A

Normal or Gaussian distribution

5
Q

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

A

Variance

6
Q

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

A

Semi inter quartile range

7
Q

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

A

Coefficient of variation CV