Twelve randomly chosen students were asked how many times they had missed class during a certain semester,with this result: 3,2,1,2,1,5,9,1,2,3,3,10.The geometric mean is:
B) 2.604
C) 1.517

Question

Twelve randomly chosen students were asked how many times they had missed class during a certain semester,with this result: 3,2,1,2,1,5,9,1,2,3,3,10.The geometric mean is:
B) 2.604 
C) 1.517

Quizplus · Accepted Answer

To find the geometric mean, we multiply all the numbers together, and then take the $12$th root.
$$\sqrt[12]{3 \cdot 2 \cdot 1 \cdot 2 \cdot 1 \cdot 5 \cdot 9 \cdot 1 \cdot 2 \cdot 3 \cdot 3 \cdot 10} \approx 2.604$$
Therefore the answer is $\boxed{	extbf{(B)}}$.

Twelve Randomly Chosen Students Were Asked How Many Times They