Q=1
one card is e=selected at random from a duck of 52 playing card , shat is the probability that the card is a club and face or both. 5
Q=2
if mean of a distribution is 20 ans S.D =1 . if chebychiv theorem tells us that 75% of values are between a, b (systematic about mean) then what are their limits. 5
Q=3
if sumation x^2=7869 , sumation x= 294 , x bar =7.94 and n= 37
then find C.V=? 3
one card is e=selected at random from a duck of 52 playing card , shat is the probability that the card is a club and face or both. 5
Q=2
if mean of a distribution is 20 ans S.D =1 . if chebychiv theorem tells us that 75% of values are between a, b (systematic about mean) then what are their limits. 5
Q=3
if sumation x^2=7869 , sumation x= 294 , x bar =7.94 and n= 37
then find C.V=? 3
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