High School

A sample of eight curling rocks used in a large curling club was found to have an average weight of 41.2 pounds and a standard deviation of 2.1 pounds. Curling rocks are supposed to weigh between ______ pounds and ______ pounds.

1) 43.3, 39.1
2) 43.3, 37.9
3) 39.1, 37.9
4) 43.3, 39.9

Answer :

Final answer:

Curling rocks are supposed to weigh between 43.3 pounds and 39.9 pounds. Therefore the correct answer is 4) 43.3, 39.9

Explanation:

Curling rocks are supposed to weight between 43.3 pounds and 39.9 pounds.

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