9. The data set below gives the scores of seven people on a history test. Which correctly gives the standard deviation and variance of the data set? {74, 78, 83, 89, 90, 92, 96} A. Standard Deviation = 53.2; Variance = 7.3
B. Standard Deviation = 53.2; Variance = 86
C. Standard Deviation = 7.3; Variance 53.2
D. Standard Deviation = 86; Variance = 53.2​

The question is kind of confusing. if it's asking how many variations of answers can you give. then do 4^5 for your answer.this would be something like the first question could be a and the 2nd c or first b next c etc. if you can, ask the teacher for a better confirmation of what it's asking. if i'm assuming correctly what it's asking, it's 625 different variations.