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<p>The diagram above is the cumulative frequency curve for the daily time spent surfing Facebook of \(250\) students.</p>
<ol class="abc-list"><li><div class="list-item-content"><span class="list-item-text">Use the graph to find</span></div><ol class="i-list"><li><div class="list-item-content"><span class="list-item-text">the median time spent surfing Facebook,</span><span class="inline-marks">[1]</span></div></li><li><div class="list-item-content"><span class="list-item-text">the number of students who spend more than \(20\) minutes a day surfing Facebook,</span><span class="inline-marks">[2]</span></div></li><li><div class="list-item-content"><span class="list-item-text">the \(90^{th}\) percentile,</span><span class="inline-marks">[2]</span></div></li><li><div class="list-item-content"><span class="list-item-text">the interquartile range.</span><span class="inline-marks">[2]</span></div></li></ol></li><li><div class="list-item-content"><span class="list-item-text">A second group of students have a higher median and a larger standard deviation. Describe how the cumulative frequency graph will differ from this given curve.</span><span class="inline-marks">[2]</span></div></li></ol>

The diagram above is the cumulative frequency curve for the daily time spent surfing Facebook of \(250\) students.

the number of students who spend more than \(20\) minutes a day surfing Facebook,

A second group of students have a higher median and a larger standard deviation. Describe how the cumulative frequency graph will differ from this given curve.

Statistics - Mean and Standard Deviation for Grouped Data

Question 09250567

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