Question

find the median of the following data
Please answer correctly
Need help.....​

Answer 1

Answer:

50or above

43 is the median

Answer 2

Answer:

ClassInterval Frequency c.f.

ClassInterval Frequency c.f. 0−20 6 6

20−40 8 14

40−60 10 24

60−80 12 36

80−100 6 42

100−120 5 47

120−140 3 50

120−140 3 50

N=50

Here, N=50, then

2

2N

2N

=

= 2

= 250

= 250

= 250

=25

∴ Median class =60−80

We have, l=60,c.f=24,f=12 and h=20

We have, l=60,c.f=24,f=12 and h=20Median=l+

f

f2

f2N

f2N

f2N −c.f

f2N −c.f

f2N −c.f ×h

f2N −c.f ×h =60+

12

1225−24

1225−24

1225−24 ×20

1225−24 ×20 =60+1.66

1225−24 ×20 =60+1.66 =61.66

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