Question
Which Index number satisfies both the time reversal test
and the factor reversal test?Solution
Only Fisher's index number is the ideal index number which satisfies time reversal and factor reversal test.
Two cards are drawn from a pack of 52 cards. The probability that 1 is Ace and 1 is Queen is?
A bag contains 7 red gems, 8 yellow gems and 5 green gems . 3 gems are drawn randomly. What is the probability that the
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