52
Find the Mean and Mode of the following frequency distribution :
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Correct table
Mean $= 35 + \frac{5}{80} \times 10$
$= 35.625$
Modal Class is $30 - 40$
Mode $= 30 + \left(\frac{20-15}{2\times20-15-12}\right) \times 10$
$= \frac{440}{13}$ or $33.85$ approx.
Mean $= 35 + \frac{5}{80} \times 10$
$= 35.625$
Modal Class is $30 - 40$
Mode $= 30 + \left(\frac{20-15}{2\times20-15-12}\right) \times 10$
$= \frac{440}{13}$ or $33.85$ approx.