The mean height of the trees in the virgin forest of Zambales is 42 ft and the standard deviation is 3 ft. Assuming that the distribution of these trees follows a normal distribution, what percent of the trees is from 38 to 43 ft. tall?

a.53.75%
b.56 57%
c.57.35%
d.57.53%​


Sagot :

Answer:

b

Step-by-step explanation:

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