The ages of trees in a forest are normally distributed with a mean of 25 years and a standard deviation of 4. Approximately what percent of the trees are between 20 and 30 years old?

Question

Mathematics

Celeste Higgins

24 March, 00:58

The ages of trees in a forest are normally distributed with a mean of 25 years and a standard deviation of 4. Approximately what percent of the trees are between 20 and 30 years old?

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Answers (2)

Know the Answer?

Deanna Hampton · Answer 1

Deanna Hampton 24 March, 01:55

0

The correct answer is:

C: 78.87%

Reed Hess · Answer 2

The percentage that the trees are between 20 and 30 years old, base on the data you have given and by graphing its information, the percentage would be 78.88%. I hope you are satisfied with my answer and feel free to ask for more