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, [tex]\sum x[/tex]
We know that:
[tex]\bar{x}=\frac{\sum x}{n}[/tex]
We are given:
[tex]\bar{x} = 12, n=8[/tex]
[tex]\therefore 12=\frac{\sum x}{8}[/tex]
[tex]\sum x = 12 \times 8[/tex]
[tex]\sum x=96[/tex]
Hence, sum of 8 observation's, [tex]\sum x =96[/tex]
