Question

can someone pls help meee..
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plss dont spam​

Answer 1

Answer:

5.median

class. f. c.f

0-20. 5. 5

20-40. 8. 13

40-60. 12. 25

60-80. 11. 36

80-100. 4 . 40

total. 40

M= size of ( n/2)th item

here n=40 .

now

n/2= 40/2= 20

n=20

now

Median's formula is

M=L1 +n/2-c.f./f *i

here

L1= 40 , n/2= 20 , c.f.=25, f=12 , i =60-40=20.

now put it in formula

M=40+ 20-25/12 *20

M= 40+ -5/12*20

M=40 + 0.416*20= 40+8.320

M=48.320

it is ur median of 5 th question