Year 9 Stats Revsion

The data value with the highest frequency is called the

• Mean

• Median

• Mode

• Lower quartile

The mean of a set of data is also called the

• The inter quartile range

• Most common value

• Middle value

• Average

How many students studied between 10 and 15 hours?

• 9

• 12

• 15

• 18

This data distribution can be described as

• Symmetrical

• Positively skewed

• Negatively skewed

• Random

To find the mean of a set of data you need to add up all the values and divide by the number of values. True or False?

The mode of this data is

• 19

• 15 - 20

• 20 - 25

• 21

The median of the set of numbers

16, 17, 19, 23, 24, 24, 25

is

• 19

• 23

• 24

• 25

The mode of the set of numbers

16, 17, 19, 23, 24, 24, 25

is

• 19

• 23

• 24

• 25

The upper quartile of the set of numbers

16, 17, 19, 23, 24, 24, 25

is

• 17

• 19

• 23

• 24

The mean of the set of numbers

16, 17, 19, 23, 24, 24, 25

is closest to

• 19

• 20

• 21

• 22