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प्रश्न
The probability of an event that cannot happen is _________. Such as event is called _________.
उत्तर
The probability of an event that cannot happen is 0. Such as event is called impossible event.
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संबंधित प्रश्न
A die is thrown. Find the probability of getting:
an even prime number
In a simultaneous throw of a pair of dice, find the probability of getting an even number on one and a multiple of 3 on the other
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
A bag contains 3 red balls, 5 black balls and 4 white balls. A ball is drawn at random from the bag. What is the probability that the ball drawn is Red
One card is drawn from a well shuffled deck of 52 cards. Find the probability of getting a queen of black suit
A bag contains 3 red balls and 5 black balls. A ball is drawn at random from the bag. What is the probability that the ball drawn is Black
Why is tossing a coin considered to be a fair way of deciding which team should choose ends in a game of cricket?
A bag contains 5 red, 8 white and 7 black balls. A ball is drawn at random from the bag. Find the probability that the drawn ball is not black
Three coins are tossed together. Write all the possible outcomes. Now, find the probability of getting at least one tail.
A bag contains 3 red, 3 white and 3 green balls. One ball is taken out of the bag at random. What is the probability that the ball drawn is –not red.
In a cricket match a batsman hits a boundary 6 times out of 30 balls he plays. Find the probability that he did not hit the boundary?
Two dice are thrown simultaneously. Find the probability of getting: an even number as the sum.
Which of the following cannot be the probability of an event?
A card is selected from a deck of 52 cards. The probability of its being a red face card is ______.
Two dice are thrown together. Find the probability that the product of the numbers on the top of the dice is 12
A coin is tossed 3 times. List the possible outcomes. Find the probability of getting all heads
In a game, the entry fee is Rs 5. The game consists of a tossing a coin 3 times. If one or two heads show, Sweta gets her entry fee back. If she throws 3 heads, she receives double the entry fees. Otherwise she will lose. For tossing a coin three times, find the probability that she gets double entry fee.
A lot consists of 48 mobile phones of which 42 are good, 3 have only minor defects and 3 have major defects. Varnika will buy a phone if it is good but the trader will only buy a mobile if it has no major defect. One phone is selected at random from the lot. What is the probability that it is acceptable to the trader?
The table given below shows the months of birth of 36 students of a class:
| Month of birth |
Jan. | Feb. | Mar. | Apr. | May | June | July | Aug. | Sept. | Oct. | Nov. | Dec. |
| No. of students |
4 | 3 | 5 | 0 | 1 | 6 | 1 | 3 | 4 | 3 | 4 | 2 |
A student is choosen at random. Fill in the boxes.
Total number of students = `square`
Let E be the event that the selected student is born in June.
Then,
Number of times event E occurs = `square`
So, P (selected student is born in June)
P(E) = `"Number of students born in June"/square`
= `square/square`
= `square`
An unbiased die is thrown. The probability of getting an odd prime number is ______.
