Averages from Frequency Tables
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Hard
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The frequency table shows the daily screen time for 100 students.

Screen Time (m m\,m minutes)Frequency
0<m≤600 < m \leq 600<m≤608
60<m≤12060 < m \leq 12060<m≤12014
120<m≤180120 < m \leq 180120<m≤18032
180<m≤240180 < m \leq 240180<m≤24026
240<m≤300240 < m \leq 300240<m≤30012
300<m≤360300 < m \leq 360300<m≤3608
a.

Find the percentage of students who used their phones for more than 180 minutes.

[1]
b.

Find the class interval that contains the median.

[1]
c.

Find an estimate for the mean screen time for the students.

[3]

Averages from Frequency Tables Questions

Practise AQA GCSE Maths Averages from Frequency Tables with exam-style questions for Foundation and Higher tier. 32 questions, matched to the AQA GCSE Maths (8300) specification and written in Paper 1, Paper 2 and Paper 3 style. Every question includes a full worked solution and mark scheme, so you can see where marks are awarded rather than just whether you got the answer right.

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Averages from Frequency Tables Questions

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