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.
Answer:22.6
Step-by-step explanation:34x8=272 the divind it to to get 22.6.
Hope this helps.
Answer:
9x -18+18=43+18
Step-by-step explanation:
added 18 to both sides
hope this helps good luck :)
Answer:
7.24632
Step-by-step explanation:
Answer:
5 negative numbers
Step-by-step explanation:
-5 -4 -3 -2 -1 0 1 2 3 4 5
1 2 3 4 5 6 7 8 9 10 11