Statistics Practice Set

QD's formula is?

• Q3 - Q1

• IR/2

• D9 - D1

• P90 - P10

Range's Formula is Hv - Lv

• True

• False

It is the average of the absolute deviations of each observation from the mean

• Mean Deviation

• Quantile Deviation

• Standard Deviation

• Variance

What do you do if you see the symbol (2)

• Subtract the number by itself

• Add the number by itself

• Divide the number by itself

• Times the number by itself

In ungrouped data, what do you need to do first?

• Arrange the data in alphabetical order

• Arrange the data in ascending order

• Arrange the data in descending order

s2 is the symbol for standard deviation while s is the symbol for variance

• True

• False

The most used measure of dispersion is?

• Standard Deviation

• Mean

• Variance

• Quantile Deviation

x represents the scores in the distribution

• True

• False

In mean deviation, M stands for mean

• True

• False