Find the mean of the following data :
$30, 32, 24, 34. 26, 28, 30. 35, 33, 25$

140

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29.7

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39.7

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None of these

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Solution

The correct option is B $29.7$
Mean of the series: $30, 32, 24, 34, 26, 28, 30, 35, 33, 25$
mean $= \frac{S u m}{N u m b e r o f o b s e r v a t i o n s}$

mean $= \frac{30 + 32 + 24 + 34 + 26 + 28 + 30 + 35 + 33 + 25}{10}$
mean $= \frac{297}{10}$ = $29.7$

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Find the mean of the following data :30,32,24,34.26,28,30.35,33,25

The correct option is B 29.7Mean of the series: 30,32,24,34,26,28,30,35,33,25mean =SumNumberofobservations mean =30+32+24+34+26+28+30+35+33+2510 mean =29710 = 29.7

Find the mean of the following data :
$30, 32, 24, 34. 26, 28, 30. 35, 33, 25$

The correct option is B $29.7$
Mean of the series: $30, 32, 24, 34, 26, 28, 30, 35, 33, 25$
mean $= \frac{S u m}{N u m b e r o f o b s e r v a t i o n s}$

mean $= \frac{30 + 32 + 24 + 34 + 26 + 28 + 30 + 35 + 33 + 25}{10}$
mean $= \frac{297}{10}$ = $29.7$