Question 29.7: Repeat Example 29.6 using the newly derived formulae....
Repeat Example 29.6 using the newly derived formulae.
Step-by-Step
\textstyle\sum x_{i}^{2}=(-2)^{2}+(7.2)^{2}+(6.9)^{2}+(-10.4)^{2}+(5.3)^{2}=239.7
standard deviation = {\sqrt{\frac{239.7-5(1.4)^{2}}{5}}}=6.78
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