can anyone tell pls this is my last one pls both are different questions pls tell.
1 request pls don't spam
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given,
f=6,8,p,10,6
x=10,15,20,25,30
mean=20.2
so,
fixi/fi=20.2
now,
fixi= (10×6)+(15×8)+(20×p)+(25×10)+(30×6)
=610+20p
now fi=6+8+p+10+6=30p
fixi/fi=20.2
610+20p+30p=20.2
20.2(30+p)=610+20p
606+20.2=610+20p
20.2p-20p=610-606
0.2p=4
p=4/0.2
p=4×10/2
p=20
i hope it helps
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