3. The median for the following distribution is 26. Find the missing
frequency
C.I
f
0-10
3
10-20 20-30
5
30-40
6
40-50
4
Answers
Answered by
3
Answer:
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Step-by-step explanation:
9
2
=9×9=81
similarly,
12
2
=12×12=144
Hence, D is the correct option.
Answered by
0
Step-by-step explanation:
N=18+A
M= Size of (N/2)th value
M=size of (18+A/2)th value
M=size of (9+A/2)th value
LCF 8+A is greater or equal to 9+A/2
therefore the median class is. 20-30
given
l=20
pcf =8
f=A
h=10
N/2=18+A/2
M=26
M= l+h/f [N/2-pcf ]
26=20+10/A[18+A/2-8]
26-20= 10/A[18+A-16/2]
6A=10[2+A/2]
6A=[20+10A/2]
12A=20 +10A
2A=20
A=10
THEREFORE THE MiSSING FREQUENCY IS 10
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