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Q.

The median and mode of a frequency distribution are 26 and 29 respectively. Then, the mean is


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a

27.5

b

24.5

c

28.4

d

25.8 

answer is B.

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Detailed Solution

Given that the median and mode of a frequency distribution are 26 and 29 respectively..
The formula used is,
  Mode= 3×median − 2×mean  
Substituting values,
2×Mean = 3×Median −mode 2×Mean =3×26−29 2×Mean =49 Mean=24.5  
Hence, the mean is 24.5.
Thus, the correct answer is option 2.
 
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The median and mode of a frequency distribution are 26 and 29 respectively. Then, the mean is