The number of people on various teams within a soccer league are shown below. What info best represents the data? 15, 16, 16, 18, 19, 19, 20, 20, 21, 22, 23

Scores on a university exam are normally distributed with a mean of 78 and a standard deviation of 8. the professor teaching the class declares that a score of 70 or higher is required for a grade of at least “c.” using the 68-95-99.7 rule, what percentage of students failed to earn a grade of at least “c”?