The answer is C. Here you go.
First, find the mean. You'll need it to compute the variance.

The variance of the sample is then computed with the formula

The standard deviation is the square root of the variance, so
Answer:
The sides of the rectangle can then be divided into parts to reveal partial products that make up the total product. This helps students develop the flexibility and conceptual understanding required to build fluency with basic facts and strategies for multiplication of larger numbers.
Step-by-step explanation:
Answer:
I'm not sure 710
Step-by-step explanation:
I'm not sure
Answer:
1 1/2 lbs
Step-by-step explanation: