If $A$ is a sure event, then the value of $P (A$ not ) is
$0$
$-1$
$1$
None of these
(a) It is obvious.
Three coins are tossed together, then the probability of getting at least one head is
A card is selected from a pack of $52$ cards. Calculate the probability that the card is black card.
A bag contains $3$ red and $7$ black balls, two balls are taken out at random, without replacement. If the first ball taken out is red, then what is the probability that the second taken out ball is also red
A fair coin with $1$ marked on one face and $6$ on the other and a fair die are both tossed. find the probability that the sum of numbers that turn up is $3$.
From a pack of $52$ cards two are drawn with replacement. The probability, that the first is a diamond and the second is a king, is
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