Mathematics, 04.05.2020 23:48 Chavens520
The weight of laboratory butterflies follows a Normal distribution, with a mean of 50 grams and a standard deviation of 3 grams. What percentage of the butterflies weigh between 47 grams and 53 grams?
1.) 99.7%
2.) 95%
3.) 68%
4.) 47.5%
5.) 34%
Answers: 2
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