Advertisements
Advertisements
प्रश्न
If the probability of winning a game is 0.4, the probability of losing it is
पर्याय
0.96
`1/0.4`
`0.6`
none of these
उत्तर
0.6
Explanation:
Let E be the event of winning a game.
Then, ( not E) is the event of not winning the game or of losing the game.
Then, P(E) = 0.4
Now, P(E) + P(not E) = 1
⇒ 0.4 + P(not E) = 1
⇒ P(not E) = 1− 0.4 = 0.6
∴ P(losing the game) = P(not E) = 0.6
APPEARS IN
संबंधित प्रश्न
A die is thrown once. Find the probability of getting an even number.
A child has a die whose 6 faces show the letters given below:
The die is thrown once. What is the probability of getting (i) A and (ii) B?
There are 35 students in a class of whom 20 are boys and 15 are girls. From these students one is chosen at random. What is the probability that the chosen student is a girl?
A box contains 90 discs which are numbered from 1 to 90. If one disc is drawn at random from the box, find the probability that it bears a perfect square number.
A card is drawn at random from a well-shuffled deck of 52 cards. Find the probability of getting a diamond.
One card is drawn from a well-shuffled deck of 52 cards. Find the probability of getting a jack of hearts.
A box contains cards bearing numbers 6 to 70. If one card is drawn at random from the box, find the probability that it bears a one-digit number,
Find the probability that a leap year selected at random will contain 53 Sundays.
Cards, each marked with one of the numbers 6, 7, 8,..., 15, are placed in a box and mixed thoroughly. One card is drawn at random from the box. What is the probability of getting a card with a number less than 10?
A box contains 20 discs which are numbered from 1 to 20. If one disc is drawn at random from the box, then find the probability that the number the drawn disc is a 2-digit number.