The partially completed histogram and the partially completed table show the times taken, to the nearest second, for a group of people to complete a puzzle.

A partially completed histogram of puzzle completion times, with bars shown for the 5–8 and 11–15 second intervals.

Time (seconds)	Frequency
1 – 4	2
5 – 8	12
9 – 10	8
11 – 15
16 – 20	3

Complete the histogram

One of the participants is selected at random. Estimate the probability that this participant completed the puzzle in under $k\,$ seconds, where $8.5 < k < 10.5$ . Give your answer in terms of $k$ .

The partially completed histogram and the partially completed table show the times taken, to the nearest second, for a group of people to complete a puzzle.

A partially completed histogram of puzzle completion times, with bars shown for the 5–8 and 11–15 second intervals.

Time (seconds)	Frequency
1 – 4	2
5 – 8	12
9 – 10	8
11 – 15
16 – 20	3

Complete the histogram

One of the participants is selected at random. Estimate the probability that this participant completed the puzzle in under $k\,$ seconds, where $8.5 < k < 10.5$ . Give your answer in terms of $k$ .

Representations of Data

Question 89

Markscheme

Representations of Data

Question 89

Markscheme

Representations of Data

Question 89

Representations of Data Questions

Representations of Data

Question 89

Representations of Data Questions