Answer:
1/4
Step-by-step explanation:
there are 2 multiples of 3, 3 and 6
2/8=1/4
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:
The quotient of:
is: 
Step-by-step explanation:
We need to find quotient of: 
We know that 
Now solving:

Writing it in scientific notation

So, the quotient of:
is: 
Answer:
46
Step-by-step explanation: