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1.
The sum of the probabilities of all elementary events of an experiment is p, then
2.
A coin is tossed twice. The probability of getting both heads is
3.
Which of the following cannot be the probability of an event?
4.
A ticket is drawn at random from a bag containing tickets numbered from 1 to 40. The probability that the selected ticket has a number which is a multiple of 5 is
5.
One card is drawn from a well-shuffled deck of 52 cards. The probability that the card will not be an ace is
6.
A lot consists of 144 ball pens of which 20 ae defective and the others are good. Tanu will buy a pen if it is good but will not buy if it is defective. The shopkeeper draws one pen at random and gives it to her. The probability that she will buy that pen is
7.
8.
A bag contains 3 red balls and 5 black balls. A ball is drawn at random from the bag. The probability that a red ball drawn is
9.
A card is drawn from a well shuffled deck of 52 cards. The probability of a seven of spade is
10.
