Advertisements
Advertisements
Question
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
white?
Advertisements
Solution
\[\text{ Number of pairs of white socks } = 6 \]
\[\text{ Number of pairs of black socks } = 3 \]
\[\text{ Total number of pairs of socks } = 6 + 3 = 9 \]
\[ \therefore \text { Number of possible outcomes } = 9\]
\[\text{ Let A be the event of getting a pair of white socks } . \]
\[ \therefore P\left( A \right) = \frac{6}{9} = \frac{2}{3}\]
APPEARS IN
RELATED QUESTIONS
Tell whether the given is certain to happen, impossible, can happen but not certain.
The next traffic light seen will be green.
A die is thrown. Find the probability of getting:
2 or 4
Three coins are tossed together. Find the probability of getting:
exactly two heads
A card is drawn at random from a pack of 52 cards. Find the probability that the card drawn is:
a black king
A card is drawn at random from a pack of 52 cards. Find the probability that the card drawn is:
a ten
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.
A card is drawn at random from a pack of 52 cards. Find the probability that the card drawn is:
a red card
Classify the following statements under appropriate headings.
- Getting the sum of angles of a triangle as 180°.
- India winning a cricket match against Pakistan.
- Sun setting in the evening.
- Getting 7 when a die is thrown.
- Sun rising from the west.
- Winning a racing competition by you.
| Certain to happen | Impossible to happen | May or may not happen |
When a spinner with three colours (Figure) is rotated, which colour has more chance to show up with arrow than the others?
