Three instructors are comparing scores on their finals; each had 99 students. In Class A, one student got 1 point, another got 99 points, and the rest got 50 points. In Class B, 49 students got a score of 1, one student got a score of 50, and 49 students got a score of 99. In Class C, one student got a score of 1, one student got a score of 2, one student got a score of 3, and so forth, all the way through 99. Which class had the biggest standard deviation?
A. BB. AC. CD. They are the same

Solve with work both bert and ernie received an increase in their weekly salaries. bert's salary increased from $520 to $520. ernie's salary went from $580 to $645. find the percent of increase for each salary. what was the larger of the two percents ?

Determine if the following statement is true or false. the normal curve is symmetric about its​ mean, mu. choose the best answer below. a. the statement is false. the normal curve is not symmetric about its​ mean, because the mean is the balancing point of the graph of the distribution. the median is the point where​ 50% of the area under the distribution is to the left and​ 50% to the right.​ therefore, the normal curve could only be symmetric about its​ median, not about its mean. b. the statement is true. the normal curve is a symmetric distribution with one​ peak, which means the​ mean, median, and mode are all equal.​ therefore, the normal curve is symmetric about the​ mean, mu. c. the statement is false. the mean is the balancing point for the graph of a​ distribution, and​ therefore, it is impossible for any distribution to be symmetric about the mean. d. the statement is true. the mean is the balancing point for the graph of a​ distribution, and​ therefore, all distributions are symmetric about the mean.

The answer is 7.2 how would you put this as money