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In the marks 10, 20, 30, 40, the number of observations is even. The median is the average of which two terms?

Class 9Measures of Central TendencyStatistics and Probability
  • A1st and 2nd
  • B2nd and 3rd
  • C3rd and 4th
  • D1st and 4th

Step-by-Step Solution

For n = 4 (even), median = average of the (n/2)th and (n/2 + 1)th terms = average of the 2nd and 3rd terms.
Answer: B) 2nd and 3rd

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