Advertisements
Advertisements
प्रश्न
Write the probability of an event which is impossible.
उत्तर
The probability of an impossible event is ‘0’
i.e. P(S) = 0
Proof: Since E has no element, n(E) = 0
From definition of probability:
`P(S) = (n(E))/(n(S)) = 0/(n(S))`
P(S) = 0
APPEARS IN
संबंधित प्रश्न
A die is thrown twice. What is the probability that
- 5 will not come up either time?
- 5 will come up at least once?
[Hint: Throwinga die twice and throwing two dice simultaneously are treated as the same experiment].
A card is drawn at random from a pack of 52 cards. Find the probability that card drawn is neither a heart nor a king
One card is drawn from a well shuffled deck of 52 cards. Find the probability of getting a spade
The probability of selecting a green marble at random from a jar that contains only green, white and yellow marbles is 1/4 The probability of selecting a white marble at random from the same jar is 1/3 If this jar contains 10 yellow marbles. What is the total number of marbles in the jar?
Fill in blank:
Probability of an event A + Probability of event ‘not A’ ...........
From a well-shuffled deck of 52 playing-cards, one card is drawn. Find the probability that the card drawn will not be a red card.
Two dice (each bearing numbers 1 to 6) are rolled together. Find the probability that the sum of the numbers on the upper-most faces of two dice is more than 10.
A bag contains 3 white, 5 black and 2 red balls, all of the same shape and size. A ball is drawn from the bag without looking into it, find the probability that the ball drawn is:
not a red ball.
A two digit number is to be formed from the digits 0, 1, 2, 3, 4. Repetition of the digits is allowed. Find the probability that the number so formed is a - multiple of 11.
Two dice are tossed simultaneously. The probability of getting odd numbers on both the dice is ______.