In the given frequency distribution, which is the median term?
AgeinyearsNo.ofpeople15316817101810195204
A
19th,20th
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B
20th,21st
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C
21st
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D
20th
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Solution
The correct option is B20th,21st AgeinNo.ofCumulativeyearspeoplefrequency1533168111710211810311953620440 The total number of people is 40. Since it is an even number, there will be two median terms : (n2)th and (n2+1)th terms. So, the median terms will be the 20th and 21st terms.