Advertisements
Advertisements
प्रश्न
The probability that it will rain tomorrow is 0.85. What is the probability that it will not rain tomorrow?
Advertisements
उत्तर
\[\text{ Let A be the event of raining tomorrow } . \]
\[\text{ The probability that it will rain tomorrow, P\left( A \right), is 0 . 85 } . \]
\[\text{ Since the event of raining tomorrow and not raining tomorrow are complementary to each other, the probability of not raining tomorrow is }: \]
\[P\left( A \right) = 1 - P\left( A \right) = 1 - 0 . 85 = 0 . 15\]
संबंधित प्रश्न
Find the probabilities of the events given in Question 2.
There are 6 marbles in a box with numbers from 1 to 6 marked on each of them.
What is the probability of drawing a marble with number 5?
A die is thrown. Find the probability of getting:
a multiple of 2 or 3
A card is drawn at random from a pack of 52 cards. Find the probability that the card drawn is:
a black card
A bag contains 4 red, 5 black and 6 white balls. A ball is drawn from the bag at random. Find the probability that the ball drawn is:
red
A bag contains 5 red marbles, 8 white marbles, 4 green marbles. What is the probability that if one marble is taken out of the bag at random, it will be
not green
When two dice are rolled:
Find probability of getting an odd total.
In a school only, 3 out of 5 students can participate in a competition. What is the probability of the students who do not make it to the competition?
Rohit collected the data regarding weights of students of his class and prepared the following table:
| Weight (in kg) | 44 – 47 | 48 – 51 | 52 – 55 | 56 – 60 |
| Number of Students | 3 | 5 | 25 | 7 |
A student is to be selected randomly from his class for some competition. The probability of selection of the student is highest whose weight is in the interval ______.
If a die is thrown, the probability of getting a number greater than 6 is 1.
