A sample of n=8 scores has a mean of m=12. What is the value of ∑x for this sample
Answer: We are given the mean of 8 scores is 12.
We are required to find the sum of these 8 observation's, 
We know that:
We are given:
Hence, sum of 8 observation's, 
I’m pretty sure it’s true
It would be mean. The mean is the average that is you are looking for, since she wants a summerization of all the values in the data set. To find the mean (average) add all the numbers and then divide by the amount of numbers.
Answer: D - 4 1/2 FT.
Step-by-step explanation:
36 (length of rope) divided by 8 (sections) equals 4.5
