A particular fruit's weights are normally distributed, with a mean of 287 grams and a standard deviation of 19 grams.
If you pick one fruit at random, what is the probability that it will weigh between 251 grams and 346 grams
Z = (score-mean)/SD
Z = (251-287)/19 = ?
Z = (346-287)/19 = ?
Find table in the back of your statistics text labeled something like "areas under normal distribution" to find the proportion/probability between the two Z scores.