Answer:
1526.8 ft ^3
Step-by-step explanation:
the volume of a cylinder formula is V=π x r^2 x h
= pi x 9^2 x 6
= pi x 81 x 6
=1526.8 ft ^3
Answer: A. 6.5
Step-by-step explanation:
Here, the given set = { 15, 19 3, 12, 17, 2, 2, 8}
Mean, 
Number of elements, n = 8

Thus, the standard deviation, 
⇒ Option A is correct.
13 gpas are higher than 3.35. There are a total of 34 gpas. 13 divided by 34 is 0.382 (rounded to 3 dp). 0.382 x 100 = 38.2 therefore 38.2% of students have a higher gpa than Sally.