To find the probability that a given plant produced between 15 and 19 strawberries, you can use the information you have about the probabilities within smaller ranges and combine them.
You know:
Probability of between 15 and 17 strawberries = 34%
Probability of between 17 and 19 strawberries = 13.5%
To find the probability between 15 and 19 strawberries, you can add these two probabilities together:
P(between 15 and 19) = P(15 to 17) + P(17 to 19) = 34% + 13.5% = 47.5%
So, the probability that a given plant produced between 15 and 19 strawberries is 47.5%.