Dr. Smith, a biology professor at Bradford University, has decided to give his classes a standardized biology exam that is nationally normed. This indicates that the normal distribution is an appropriate approximation for the probability distribution of students' scores on this exam. The probability distribution of students' scores on this standardized exam can be estimated using the normal distribution shown below.
Inflection Point
Inflection Point
70
78
96
Taken from Hawkes Beginning Statistics
1. State the mean of the distribution of the biology exam scores.