Practice30Create account

Find the median of the distribution: classes 20–30, 30–40, 40–50, 50–60, 60–70 with frequencies 6, 14, 20, 12, 8.

Competition practiceStatistics
  • A40
  • B45
  • C44.5
  • D46

Step-by-Step Solution

. Cumulative: 6, 20, 40 → median class 40–50 (cf = 20, ). Median . (40 is only the class boundary.)
Answer: B) 45

Master this topic in 30 minutes a day.

Don't just memorise the answer — build a daily practice habit.

Practice 5 Similar Questions Free →

All Statistics practice questions

More Statistics practice

In a scholarship test, Reasoning carries weight 3, Maths weight 4 and English weight 3.…The data 2, 4, 4, 5, 7, 7, 7, 9, x has a mean of 6 and its mode is 7. What is x?Six boxes in a godown have a mean weight of 48 kg. One box is swapped for a new box…A clerk found the mean of 30 test scores to be 62. Later it came out that one score of…Twenty-one different observations have a median of 34. Every observation larger than the…