If fi=15 fixi=3p+36and the mean of a disturbution is 3 then find the value of p\
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Given :
fixi =3p+36
fi =15
mean=3
then p =?
mean= fixi/fi
=>3=3p+36/15
=>45=3p+36
=>45-36=3p
=>9=3p
=>3=p
:.p=3
fixi =3p+36
fi =15
mean=3
then p =?
mean= fixi/fi
=>3=3p+36/15
=>45=3p+36
=>45-36=3p
=>9=3p
=>3=p
:.p=3
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