Answer:
I think it's B I hope this is the right answer.
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, ![\sum x](https://tex.z-dn.net/?f=%5Csum%20x)
We know that:
![\bar{x}=\frac{\sum x}{n}](https://tex.z-dn.net/?f=%5Cbar%7Bx%7D%3D%5Cfrac%7B%5Csum%20x%7D%7Bn%7D)
We are given:
![\bar{x} = 12, n=8](https://tex.z-dn.net/?f=%5Cbar%7Bx%7D%20%3D%2012%2C%20n%3D8)
![\therefore 12=\frac{\sum x}{8}](https://tex.z-dn.net/?f=%5Ctherefore%2012%3D%5Cfrac%7B%5Csum%20x%7D%7B8%7D)
![\sum x = 12 \times 8](https://tex.z-dn.net/?f=%5Csum%20x%20%3D%2012%20%5Ctimes%208)
![\sum x=96](https://tex.z-dn.net/?f=%5Csum%20x%3D96)
Hence, sum of 8 observation's, ![\sum x =96](https://tex.z-dn.net/?f=%5Csum%20x%20%3D96)
The partial products that Lucas would need to solve this problem would be 3,740 and 187,000 if you are multiplying 374 on the top column and 510 on the bottom column. Or, the partial products Lucas would need is 2,040 and 35,700 and 153,000. Both partial products combination added together would be 190,740.
Answer:
answer is A and it feels wierd to answer this