Question b.. Answer is 8,10
Attachments:
Answers
Answered by
1
heya it's Aastha...
xi = 10, 30, 50,70,90,110.
fi = 7 , p , 12 , q , 8 , 5 . £fi = 50
fixi = 70, 30p,600,70q ,720,550 . £fixi= 1970 + 70q + 30p
then,
using formula mean
mean = £fixi / £fi
nd solve it .
I hope it help you ✌️
xi = 10, 30, 50,70,90,110.
fi = 7 , p , 12 , q , 8 , 5 . £fi = 50
fixi = 70, 30p,600,70q ,720,550 . £fixi= 1970 + 70q + 30p
then,
using formula mean
mean = £fixi / £fi
nd solve it .
I hope it help you ✌️
Prathamattri2062:
hey Astha the value of xi which you took is wrong
all those value of xi are wrong
bcoz xi is the central value of the class interval i.e. their class mark
now it's allright
yaa
thnks
Similar questions