SOLUTION: The mean weight of insects for laboratory experiments is 13.2g, with the standard deviation of 0.8g. What is the probability of randomly selecting insects with weight of: a. 14g? b

Question 1081964: The mean weight of insects for laboratory experiments is 13.2g, with the standard deviation of 0.8g. What is the probability of randomly selecting insects with weight of: a. 14g? b. 13.1g to 13.6g?
Answer by Boreal(15235) (Show Source): You can put this solution on YOUR website!
z=(x-mean)/sd
z for the first is 0. This is a continuous function, and the probability of selecting an exact value is 0. A range is another matter.
the second is (13.1-13.2)/0.8=-0.125
and (13.6-13.2)/0.8=0.5
it is z between -0.125 and +0.5, and that probability is 0.2412.
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