Question

2. Calculate the median from the following data : 10 20 | 200 155 95 70 55 45 30 a 30 40 50 60 1 Marks (More than) 0 No. of Students 9.​

Answer 1

As, N=250⇒

2

N

=

2

250

=125

As 127 is just greater than 125, therefore median class is 50−60.

Median=l+

f

2

N

+C

×h

Here, l=lower limit of median class =50

C=C.F. of the class preceding the median class =96

h= higher limit - lower limit =60−50=10

f= frequency of median class =31

∴median=50+

31

125−96

×10=50+9.35=59.35

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Answer 2

Answer:

Explanation:

Median is 15, 70.45.