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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:
red
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उत्तर
\[\text{ Number of red balls } = 3\]
\[\text{ Number of black balls } = 5\]
\[\text{ Total number of balls }= 3 + 5 = 8\]
\[\text{ Let A be the event of drawing a red ball } . \]
\[ \therefore P\left( A \right) = \frac{\text{ Number of favourable outcomes }}{\text{ Total number of outcomes }} = \frac{3}{8}\]
संबंधित प्रश्न
Find the probabilities of the events given in Question 2.
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a doublet
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a sum less than 7
In a simultaneous throw of a pair of dice, find the probability of getting:
a number other than 5 on any dice.
A card is drawn at random from a pack of 52 cards. Find the probability that the card drawn is:
either a black card or a king
A card is drawn at random from a pack of 52 cards. Find the probability that the card drawn is:
the seven of clubs
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?
The probability of the spinning arrow stopping in the shaded region (Figure) is `1/2`.
Following cards are put facing down:
| A | E | I | O | U |
What is the chance of drawing out a card marked U?
Classify the following events:
Getting head when a coin is tossed.
