Sharon is analyzing the points scored in a quiz competition by three high schools. She has calculated the mean and standard deviation, SD, of the data, as shown below.
High School A High School B High School C
Mean = 78
SD = 2.1 Mean = 81
SD = 3.6 Mean = 85
SD = 2.8
Which of the statements is true?
A.
High school B is the least consistent in the amount of points scored because their mean is the lowest.
B.
High school A is the least consistent in the amount of points scored because their standard deviation is the lowest.
C.
High school B is the least consistent in the amount of points scored because their standard deviation is the highest.
D.
High school C is the most consistent in the amount of points scored because their mean is the highest.