The times taken for students to complete a challenge in PE are collected.
There are x students in the group 30< t s 35.
y students join the group, and the frequency density increases by 15%
6(a)
Tom says, "there were fewer than 50 people in group x and y"
Using this knowledge, find possible values for the number of students in x and y.
[4 marks]
Answer
6(b)
Based on your answer, make an estimate for the number of students who achieved a
time between 30 < t < 32.
[2 marks]
Answer