Probability Distribution Problem 17 According to my family d

Probability Distribution Problem:

17. According to my family doctor, the height of 10 year old boys is normally distributed with a mean of 55 inches and Standard Deviation of 2 inches.

a. My son, Jimmy, currently stands 56 inches tall. Knowing this, what is the probability that he will be at least 59 inches tall when he is 10 years old? (Keep in mind – he cannot get shorter)