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Find the median from the following data.. Marks Below 10, Below 20, Below 30 Below 40 Below 50 Below 60 Below 70 Below 80.. No of students 1

Home/Math/Find the median from the following data.. Marks Below 10, Below 20, Below 30 Below 40 Below 50 Below 60 Below 70 Below 80.. No of students 1

Find the median from the following data.. Marks Below 10, Below 20, Below 30 Below 40 Below 50 Below 60 Below 70 Below 80.. No of students 1

Question

Find the median from the following data.. Marks Below 10, Below 20, Below 30 Below 40 Below 50 Below 60 Below 70 Below 80.. No of students 12, 32, 57, 80, 92, 116, 164, 200…. Plz help it’s urgent

## Answers ( )

Answer:FIRST MAKE A TABLE AS SHOWN BELOW:

MARKS. NO.OF STUDENTS(F) C.F

BELOW 10. 12. 12

10-20. 32. 44

20-30. 57. 101

30-40. 80. 181

40-50. 92. 273

50-60. 116. 389

60-70. 164. 553

70-80. 200. 753

Step-by-step explanation:MEDIAN= L+(N/2-CF/F)*H

There are 8 given numbers which is even so

n=8/2=4

So we have to deal with 4th number.

Now,

L=30

N=TOTAL NO.OF STUDENTS=753

N/2=376.5

CF=101

F=80

H=10

NOW MEDIAN= 30+(376.5-101/80)*10

=30+(275.5/80)*10

=30+(2755/80*10)*10. (TO REMOVE DECIMAL WE MULTIPLY IT WITH 10)

30+34.437=64.437

MEDIAN=64.437