Mean Median Mode

Question 1

How to calculate the median

Answer 1

Place all values in order from smallest to largest and select the middle value. If there are two middle values calculate the mean of those two values

Question 2

How to calculate the mean

Answer 2

Add up all the numbers and divide by how many numbers there are in total

Question 3

How to calculate mode

Answer 3

Identify the group(s) which is/are the most frequent

Question 4

Strengths of using mean?

Answer 4

A ‘sensitive measure’ because it reflects the values of all the data in the final calculation

Question 5

Strengths of using median?

Answer 5

Not affected by extreme scores

Question 6

Strengths of using mode

Answer 6

Useful for when the data is nominal

Question 7

Negatives of using mean

Answer 7

Can’t be used with nominal data

Question 8

Negatives of using median

Answer 8

Not as ‘sensitive’ as mean because not all values are reflected in the median

Question 9

Negatives of using mode

Answer 9

Not a useful way of describing data when there are several modes

Question 10

When is it better to use median

Answer 10

If the data set has extreme values (outliers)