Advertisements
Advertisements
प्रश्न
If you have a collection of 6 pairs of white socks and 3 pairs of black socks. What is the probability that a pair you pick without looking is
black?
Advertisements
उत्तर
\[\text{ Number of pairs of white socks }= 6 \]
\[\text{ Number of pairs of black socks }= 3 \]
\[\text{ Total number of pairs of socks } = 6 + 3 = 9 \]
\[ \therefore \text{ Number of possible outcomes }= 9\]
\[\text{ Let B be the event of getting a pair of black socks }. \]
\[ \therefore P\left( B \right) = \frac{3}{9} = \frac{1}{3}\]
APPEARS IN
संबंधित प्रश्न
When a die is thrown, list the outcome of an event of getting a number greater than 5.
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 2?
In a simultaneous throw of a pair of dice, find the probability of getting:
a doublet of prime number
A card is drawn at random from a pack of 52 cards. Find the probability that the card drawn is:
spade or an ace
A card is drawn at random from a pack of 52 cards. Find the probability that the card drawn is:
a black card
An urn contains 10 red and 8 white balls. One ball is drawn at random. Find the probability that the ball drawn is white.
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:
black?
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
white
When a die is thrown, the probability of getting a number less than 7 is ______.
The probability of the spinning arrow stopping in the shaded region (Figure) is `1/2`.
