Answer:
To find the variance just take the second moment and subtract that from the first moment squared
To find the standard deviation just take the square root of the variance
Step-by-step explanation:
The answer is D if you graph it it falls into those equations in the intersection they make
1. C
2. B
Two and three are the same question.
3. B
4. C
5. B? Typically bottles of soda are 2L