Foundation November 2017 Paper 3 Q19

19 The following data comes from a large sample survey of the audience at a concert.

	Percentage	Mean age (years)	Age range (years)
Male	17%	20.3	6
Female	83%	25.7	28

Make three comparisons of males and females at the concert.

Use the headings given. [3 marks]

Proportion of the audience
Average age
Spread of ages

Mark scheme

Answer	Mark	Comments
Valid statement about proportion	B1	eg there were more females than males
Valid statement about average	B1	eg the average age of the females was higher
Valid statement about spread	B1	eg the ages of the females were more spread out

Condone incorrect values supporting statements
Condone irrelevant statements with correct statements
Proportion of the audience statements
There were more women	B1
Are mostly female	B1
There were 66% more females than males	B1
The proportion of women is high	B1
Females are a higher proportion than males	B1
Less men than women	B1
The men were 17%, the women were 83%	B1
The males were 17% which is less than half	B1
The males were 17%	B0
The difference is 66%	B0
Average age statements
The women had a higher mean	B1
Women were 5 years older	B1
Females were older than the males	B1
There were more females that were older than the males, this is why the mean age of the females is more	B1
Most males were younger than the females	B1
More older women than men	B1
There are more younger males than females	B1
There are younger males than females	B0
Females have a high mean	B0
Average age 5.4 years difference	B0
The women’s mean age range was higher	B0
Spread of ages statements
The women had a higher range	B1
More of an age gap in the females than the males	B1
Females have a higher spread	B1
Males ages are closer together than females	B1
Females have a wider age range	B1
The female age gap was high, the male age gap was low	B1
Ages were quite close together	B0
The female age gap was high	B0
Age range of males is younger than females	B0