A) 14, 4.604
B) 15, 4.604
C) 14, 5.604
D) None of these
Correct Answer: A
Solution :
\[\overline{x}=\frac{8+12+13+15+22}{5}=\frac{70}{5}=14\]\[x\] | \[(x-\bar{x})\] | \[{{(x-\bar{x})}^{2}}\] |
8 | \[-\]6 | 36 |
12 | \[-\]2 | 4 |
13 | \[-\]1 | 1 |
15 | +1 | 1 |
22 | +8 | 64 |
\[\Sigma \,x=70\] | \[\Sigma \,(x-\bar{x})=0\] | \[\Sigma \,{{x}^{2}}=106\] |
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