What is the total number of students whose height is less than or equal to 165 cm?
Consider the following for the four (04) items that follow :<br>The frequency distribution of height of students of a class is given below :<br><table><thead><tr><th>Height (in cm)</th><th>Number of Students</th></tr></thead><tbody><tr><td>160-162</td><td>12</td></tr><tr><td>162-164</td><td>15</td></tr><tr><td>164-166</td><td>24</td></tr><tr><td>166-168</td><td>13</td></tr></tbody></table>
- A. 15
- B. 39 ✓
- C. 51
- D. None of the above
Correct Answer: B. 39
Explanation
The students with height \leq 165\text{ cm} include those in the 160-162 and 162-164 classes, plus half of the 164-166 class (assuming uniform distribution). Total = 12 + 15 + \frac{24}{2} = 27 + 12 = 39.
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