Hours Spent on Social Media by Students
Hours Spent on Social Media by Students
Secondary 2
The following set of data shows the average number of hours spent on social media by a group of \(20\) students in a week during the holidays.
\(8\) | \(3\) | \(9\) | \(24\) | \(12\) |
|---|---|---|---|---|
\(16\) | \(12\) | \(30\) | \(13\) | \(8\) |
\(5\) | \(6\) | \(15\) | 21 | \(25\) |
\(13\) | \(19\) | \(12\) | \(5\) | \(18\) |
- Complete the following stem-and-leaf diagram to represent the above data.
- Find the mean number of hours spent on social media.
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Answer:(a) \(0\mid3,5,5,6,8,8,9;\ 1\mid2,2,2,3,3,5,6,8,9;\ 2\mid1,4,5;\ 3\mid0\), key \(2\mid0=20\) hours (b) \(13.7\) hours
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