Mathematics, 27.01.2021 14:00 noeltan12031
The table shows the time it took a group of students to complete a puzzle.
Time (t) in minutes
Frequency
5
2
10
9
15
20
WOO
25
a) Work out an estimate for the mean time it took the students.
Round your answer to 2 significant figures.
b) What fraction of the students finished in less than 20 minutes?
Answers: 3
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The table shows the time it took a group of students to complete a puzzle.
Time (t) in minutes
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