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प्रश्न
A bag contains 3 red balls and 5 black balls. A ball is drawn at random from the bag. What is the probability that the ball drawn is:
black
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उत्तर
\[\text{ Number of red balls } = 3\]
\[\text{ Number of black balls } = 5\]
\[\text{ Total number of balls }= 3 + 5 = 8\]
\[\text{ Let B be the event of drawing a black ball }. \]
\[ \therefore P\left( B \right) = \frac{\text{ Number of favourable outcomes }}{\text{ Total number of outcomes }} = \frac{5}{8}\]
संबंधित प्रश्न
A card is drawn at random from a pack of 52 cards. Find the probability that the card drawn is:
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A card is drawn at random from a pack of 52 cards. Find the probability that the card drawn is:
neither a red card nor a queen.
A card is drawn at random from a pack of 52 cards. Find the probability that the card drawn is:
a red card
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:
not red?
In a simultaneous throw of a pair of dice, find the probability of getting:
a number other than 5 on any dice.
In a school, only 2 out of 5 students can participate in a quiz. What is the chance that a student picked at random makes it to the competition?
It is impossible to get a sum of 14 of the numbers on both dice when a pair of dice is thrown together.
Following cards are put facing down:
\[\boxed{\text{A}}\] \[\boxed{\text{E}}\] \[\boxed{\text{I}}\] \[\boxed{\text{O}}\] \[\boxed{\text{U}}\]
What is the chance of drawing out
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- a card marked U
- A or I
- a consonant
What is the probability of the sun setting tomorrow?
Classify the following events:
Getting head when a coin is tossed.
