Central Tendency & DispersionPYQ Dec. 21Question 3078 of 473
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The marks secured by 5\displaystyle 5 students in a subject are 82,73,69,84,66\displaystyle 82, 73, 69, 84, 66. What is the coefficient of Range?

Options

A0.12
B12
C120
D0.012
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Correct Answer

✅ Option b — 12

All Options:

  • A0.12
  • B12
  • C120
  • D0.012

Detailed Solution & Explanation

**Step 1: Find maximum and minimum values.** Data: 82, 73, 69, 84, 66. - Max = 84, Min = 66 **Step 2: Calculate Range.** Range=84−66=18\text{Range} = 84 - 66 = 18 **Step 3: Calculate Coefficient of Range.** Coefficient of Range=Max−MinMax+Min×100\text{Coefficient of Range} = \frac{\text{Max} - \text{Min}}{\text{Max} + \text{Min}} \times 100 =84−6684+66×100=18150×100=12= \frac{84 - 66}{84 + 66} \times 100 = \frac{18}{150} \times 100 = 12 Hence, **Option B** is the correct answer.

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