Advertisements
Advertisements
प्रश्न
A die is thrown. Find the probability of getting:
a multiple of 2 or 3
उत्तर
\[\text{ When a die is thrown, the possible outcomes are 1, 2, 3, 4, 5 and 6 }. \]
\[\text{ Thus, the sample space will be as follows }: \]
\[S = \left\{ 1, 2, 3, 4, 5, 6 \right\}\]
\[\text{ Let A be the event of getting multiples of 2 or 3 }. \]
\[\text{ Here, the multiples of 2 are 2, 4, 6 and the multiples of 3 are 3 and 6 } . \]
\[\text{ Therefore, the favourable outcomes are 2, 3, 4 and 6 } . \]
\[\text{ Hence, the probability of getting a multiple of 2 or 3 is as follows }: \]
\[P\left( A \right) = \frac{\text{ Number of favorable outcomes }}{\text{ Total number of outcomes }} = \frac{4}{6} = \frac{2}{3}\]
APPEARS IN
संबंधित प्रश्न
When a die is thrown, list the outcomes of an event of getting a prime number.
Three coins are tossed together. Find the probability of getting:
no tails
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:
red?
When two dice are rolled:
List the outcomes for the event that the total is odd.
A coin is tossed 200 times and head appeared 120 times. The probability of getting a head in this experiment is ______.
Rohit collected the data regarding weights of students of his class and prepared the following table:
Weight (in kg) | 44 – 47 | 48 – 51 | 52 – 55 | 56 – 60 |
Number of Students | 3 | 5 | 25 | 7 |
A student is to be selected randomly from his class for some competition. The probability of selection of the student is highest whose weight is in the interval ______.
When a spinner with three colours (Figure) is rotated, which colour has more chance to show up with arrow than the others?
Classify the following events:
Getting head when a coin is tossed.
Classify the following events:
A team winning the match.