if summation fx=20,summation fx=2p+20 and mean of distribution is 12 , then find the value of p
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fx=20
fx=2p+20
then
20=2p+20
20-20=2p
trfr
0=2p
and
p=0
fx=2p+20
then
20=2p+20
20-20=2p
trfr
0=2p
and
p=0
Samaira13:
What is the use of 12 then?
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