Averages and bias

Question 1

A team has a mean of 3 goals per game from 9 games. How many goals has the team scored?

Accepted Answer

27

Question 2

Calculate the total frequency

Accepted Answer

42

Question 3

Find the median of this set of numbers: 3, 7, 7, 8, 10, 10, 11, 14

Accepted Answer

9

Question 4

Which of these is not an average?

Accepted Answer

Range

Question 5

Which of the sets of data below have a median of 15?

Accepted Answer

12, 13, 13, 17, 18, 21

Question 6

Find the mean of this set of numbers: 8, 6, 4, 7, 5

Accepted Answer

6

Question 7

How could you say all three answers are true?

Accepted Answer

On figure is the mean, the others are the median & the mode.

Question 8

Calculate the mean

Accepted Answer

3.333333

Question 9

Calculate the range of this set of numbers: 18, 23, 15, 17, 26, 23, 21, 19

Accepted Answer

11

Question 10

Calculate c

Accepted Answer

10

Question 11

What branch of mathematics contains "averages"?

Accepted Answer

Statistics

Question 12

Which average can you use to find the "average colour of car in a car park"?

Accepted Answer

Mode

Question 13

Calculate b

Accepted Answer

40

Question 14

Calculate a

Accepted Answer

90

Question 15

Find the mode of this set of numbers: 4, 6, 3, 6, 4, 3, 5, 6

Accepted Answer

6

Question 16

Which average is calculated by placing the data in order then choosing the middle value?

Accepted Answer

Median

Questions 16