Last semester, the mean score of the midterm exam for Dr. Ngo's Statistics course is 65 and the standard deviation is 8.2. Mary spent a lot of time studying and received a score of 79. Lisa didn't spend a lot of time studying but received a score of 71 in Dr. Ngo's class.

1) John is taking Dr. Ngo's class this semester. He plans to spend a few hours studying for the test. What is the probability of John receiving a score that is between Mary's and Lisa's scores ?

2) What is the probability of John receiving a score that is below Lisa's score ?

3) What is the probability of John receiving a score that is above Mary's score ?