The histogram shows the times taken by a group of people.
a.
Find the total frequency.
[2]
b.
Estimate the number who took less than 15 seconds.
[2]
c.
Estimate the corresponding probability.
[1]
Markscheme
2.5.1 Data presentation and interpretation Questions
8 exam-style questions on CCEA A Level Maths 2.5.1 Data presentation and interpretation. Each one has a worked solution and a mark scheme showing where the marks go.