mean of xi =12, 16, 20, 24, 28, 32 and fi =5, 7, 8, 5, 3, 2
Answers
Answered by
3
use xi × fi
Nd then find total of ( xifi)s
and use
mean = xifi/ fi
and get ur answer
Nd then find total of ( xifi)s
and use
mean = xifi/ fi
and get ur answer
addi182003:
my answer is 20 coming. it is corrext or not??
Answered by
1
Sigma xi. fi = 60 + 112 + 160 + 120 + 84 + 64 = 600
Sigma fi = 5 + 7 + 8 + 5 + 3 + 2 = 30
Mean ( x bar) = sigma xi. fi/ sigma fi = 600 / 30 =
Sigma fi = 5 + 7 + 8 + 5 + 3 + 2 = 30
Mean ( x bar) = sigma xi. fi/ sigma fi = 600 / 30 =
HOW?
Hmm. You are right.
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