Question

Some people took part in a game. The frequency shows information about their scores.

Score Frequency
1 - 7 14
8 - 10 13
11 - 15 11
16 - 20 12
21 - 30 1
31 - 50 18

Estimate the mean.
Give your answer rounded to 2 DP.

Answer 1

Solution. (a) The mean is. 5 6 2 4 7 8 3 5 6 6. 10. + + + + + + + + +. = 52. 10. = 5 2. ... Number of days off sick 1 – 5 6 – 10 11 – 15 16 – 20 21 – 25. Frequency. 12.

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