Question

Find the median from the following data? Mark below 10 Below 20 Below 30 Below 40 Below 50 Below 60 Below 70 Below 80 Number of students 12,32,57,80,92,116, 164,200​

Answer 1

Answer:

86 is the correct answer.....

Answer 2

Answer:

class cumulative frequency. fi

0-10. 12. 12

10-20. 32. 20

20-30. 57. 25

30-40. 80. 33

40-50. 92. 12

50-60. 116. 24

60-70. 164. 48

70-80. 200. 36

median = l+(n/2-c.f/f)×h

50+ ( 100-92)×10

24

median =53.3