Advertisements
Advertisements
प्रश्न
The probability that it will rain tomorrow is 0.85. What is the probability that it will not rain tomorrow?
उत्तर
Let E be the event of happening of rain
P(E) is given as 0.85
`barE` ⟶ not happening of rain
P(`barE`) = 1 – P(E) = 1 – 0.85 = 0.15
∴ P(not happening of rain) = 0.15
APPEARS IN
संबंधित प्रश्न
Three coins are tossed together. Find the probability of getting no tails
A card is drawn at random from a pack of 52 cards. Find the probability that card drawn is a red card
One card is drawn from a well shuffled deck of 52 cards. Find the probability of getting a spade
12 defective pens are accidently mixed with 132 good ones. It is not possible to just look at pen and tell whether or not it is defective. one pen is taken out at random from this lot. Determine the probability that the pen taken out is good one.
A bag contains twenty Rs 5 coins, fifty Rs 2 coins and thirty Re 1 coins. If it is equally likely that one of the coins will fall down when the bag is turned upside down, what is the probability that the coin will not be a Rs 2 coin?
A box contains 150 bulbs out of which 15 are defective. It is not possible to just look at a bulb and tell whether or not it is defective. One bulb is taken out at random from this box. Calculate the probability that the bulb taken out is a defective one.
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.
1000 families with 2 children were selected randomly , and the following data were recorded :
| Number of girls in a family | 0 | 1 | 2 |
| Number of families | 333 | 392 | 275 |
Find the probability of a family , having
(ii) 2 girls
A letter of English alphabets is chosen at random. What is the probability that it is a letter of the word ‘MATHEMATICS’?
Two dice are thrown at the same time. Find the probability of getting different numbers on both dice.
