Question 1193759
mean is 13.2 grams.
standard deviation is 0.8 grams.
z-score for 14 grams is z = (14 - 13.2) / .8 = 1.
area to the left of that z-score = .8413.
that's the probability of randomly selecting insects with weight of at most 14 grams.
what this says is that 84.13% of the insects randomly selected will have weights of 14 grams or less.
here's the graph.
<img src = "http://theo.x10hosting.com/2022/042701.jpg">