<p>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.</p>
<div class="table-container"><table><colgroup><col style="width: 50px;"><col style="width: 50px;"><col style="width: 50px;"><col style="width: 50px;"><col style="width: 50px;"><col style="width: 50px;"><col style="width: 50px;"><col style="width: 50px;"><col style="width: 50px;"><col style="width: 50px;"></colgroup><thead><tr><th style="text-align: center"><p>$15$</p></th><th style="text-align: center"><p>$21$</p></th><th style="text-align: center"><p>$9$</p></th><th style="text-align: center"><p>$10$</p></th><th style="text-align: center"><p>$19$</p></th><th style="text-align: center"><p>$5$</p></th><th style="text-align: center"><p>$13$</p></th><th style="text-align: center"><p>$23$</p></th><th style="text-align: center"><p>$5$</p></th><th style="text-align: center"><p>$28$</p></th></tr></thead><tbody><tr><td style="text-align: center"><p>$7$</p></td><td style="text-align: center"><p>$15$</p></td><td style="text-align: center"><p>$32$</p></td><td style="text-align: center"><p>$18$</p></td><td style="text-align: center"><p>$24$</p></td><td style="text-align: center"><p>$13$</p></td><td style="text-align: center"><p>$34$</p></td><td style="text-align: center"><p>$7$</p></td><td style="text-align: center"><p>$8$</p></td><td style="text-align: center"><p>$18$</p></td></tr></tbody></table></div>
<ol class="i-list"><li><div class="list-item-paragraph">Represent the above data in a stem-and-leaf diagram.</div></li><li><div class="list-item-paragraph">Find the percentage of students who have spent at least $15$ hours in a week on social media during the holidays. </div></li></ol>

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.

Represent the above data in a stem-and-leaf diagram.

Find the percentage of students who have spent at least $15$ hours in a week on social media during the holidays. 

Data Handling: Stem-and-Leaf and Percentage of Students

Data Handling: Stem-and-Leaf and Percentage of Students

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