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प्रश्न
Fill in the blank:
The sum of probabilities of all the outcomes of an experiment is ....... .
उत्तर
The sum of probabilities of all the outcomes of an experiment is 1 .
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संबंधित प्रश्न
A card is drawn at random from a pack of 52 cards. Find the probability that card drawn is the ace of spades
A bag contains 5 black, 7 red and 3 white balls. A ball is drawn from the bag at random. Find the probability that the ball drawn is Red
Two customers are visiting a particular shop in the same week (Monday to Saturday). Each is equally likely to visit the shop on any one day as on another. What is the robability that both will visit the shop on the same day?
Harpreet tosses two different coins simultaneously (say, one is of Re 1 and other of Rs 2). What is the probability that he gets at least one head?
Examine the following statement and comment:
If two coins are tossed at the same time, there are 3 possible outcomes—two heads,
two tails, or one of each. Therefore, for each outcome, the probability of occurrence
is 1/3
A die is thrown 450 times and frequencies of the outcomes 1,2,3,4,5,6 were noted as given in the following table
| outcomes | 1 | 2 | 3 | 4 | 5 | 6 |
| Frequency | 73 | 70 | 74 | 75 | 80 | 78 |
(ii) a number < 4
A bag contains 6 black, 7 red, and 2 white balls. A ball is drawn from the bag at random. Find the probability that the ball drawn is black or white.
A coin is tossed 3 times. List the possible outcomes. Find the probability of getting all heads
A die has its six faces marked 0, 1, 1, 1, 6, 6. Two such dice are thrown together and the total score is recorded. What is the probability of getting a total of 7?
Two dice are thrown at the same time. What is the probability that the sum of the two numbers appearing on the top of the dice is 13?
