Cumulative Frequency
1. This question has 3 part(s).
1.1. A school nurse records the height, cm, of each of 180 children.
The table shows the information.
Height ( cm) | 60</p></td><td><p style="line-height: 1.7" class="text-lg tracking-wide font-normal leading-relaxed">\(70</p></td><td><p style="line-height: 1.7" class="text-lg tracking-wide font-normal leading-relaxed">\(90</p></td><td><p style="line-height: 1.7" class="text-lg tracking-wide font-normal leading-relaxed">\(100</p></td><td><p style="line-height: 1.7" class="text-lg tracking-wide font-normal leading-relaxed">\(110</p></td><td><p style="line-height: 1.7" class="text-lg tracking-wide font-normal leading-relaxed">\(115</p></td></tr><tr><td><p style="line-height: 1.7" class="text-lg tracking-wide font-normal leading-relaxed">Frequency</p></td><td><p style="line-height: 1.7" class="text-lg tracking-wide font-normal leading-relaxed">8</p></td><td><p style="line-height: 1.7" class="text-lg tracking-wide font-normal leading-relaxed">26</p></td><td><p style="line-height: 1.7" class="text-lg tracking-wide font-normal leading-relaxed">35</p></td><td><p style="line-height: 1.7" class="text-lg tracking-wide font-normal leading-relaxed">67</p></td><td><p style="line-height: 1.7" class="text-lg tracking-wide font-normal leading-relaxed">28</p></td><td><p style="line-height: 1.7" class="text-lg tracking-wide font-normal leading-relaxed">16</p></td></tr></table><p style="line-height: 1.7" class="text-lg tracking-wide font-normal leading-relaxed">Complete the cumulative frequency table below.</p><table><tr><td><p style="line-height: 1.7" class="text-lg tracking-wide font-normal leading-relaxed">Height (\(h cm) | ||||||
Cumulative Frequency | 180 |
1.2. On the grid below, draw a cumulative frequency diagram.

1.3. Use your cumulative frequency diagram to find an estimate of
i) the interquartile range,
.......................................... cm [2]
ii) the 7 0th percentile,
.......................................... cm [2]
iii) the number of children with height greater than 106 cm.
[2]
Ai এর মাধ্যমে
১০ লক্ষ+ প্রশ্ন ডাটাবেজ
প্র্যাকটিস এর মাধ্যমে নিজেকে তৈরি করে ফেলো
উত্তর দিবে তোমার বই থেকে ও তোমার মত করে।
সারা দেশের শিক্ষার্থীদের মধ্যে নিজের অবস্থান যাচাই
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