Central Tendency & DispersionPYQ June 24Question 3005 of 473
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Geometric Mean of 3,7,11,15,24,28,30,0\displaystyle 3, 7, 11, 15, 24, 28, 30, 0 is

Options

A6
B0
C9
D12
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Correct Answer

✅ Option b — 0

All Options:

  • A6
  • B0
  • C9
  • D12

Detailed Solution & Explanation

**Step 1: Recall the formula for Geometric Mean.** GM=(x1×x2×x3×⋯×xn)1/n\text{GM} = (x_1 \times x_2 \times x_3 \times \cdots \times x_n)^{1/n} **Step 2: Identify any zero values.** The data set includes 0\displaystyle 0 as one of the observations: {3,7,11,15,24,28,30,0}\displaystyle \{3, 7, 11, 15, 24, 28, 30, 0\}. **Step 3: Compute the product.** 3×7×11×15×24×28×30×0=03 \times 7 \times 11 \times 15 \times 24 \times 28 \times 30 \times 0 = 0 (Any product containing 0\displaystyle 0 equals 0\displaystyle 0.) **Step 4: Compute GM.** GM=(0)1/8=0\text{GM} = (0)^{1/8} = 0 Since the data set contains a zero, the Geometric Mean is 0\displaystyle \mathbf{0}. Hence, **Option B** is the correct answer.

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