Advertisements
Advertisements
प्रश्न
What is the probability that a number selected from the numbers 1, 2, 3, ..., 15 is a multiple of 4?
Advertisements
उत्तर
\[\text{ There are 15 numbers from 1, 2, }\cdots, 15 . \]
\[\text{ Hence, the total number of cases is 15 } . \]
\[\text{ Again, the multiples of 4 are 4, 8 and 12 } . \]
\[\text{ Therefore, the total number of favourable cases is 3 }. \]
\[ \therefore P\left( \text{ the number is a multiple of } 4 \right) = \frac{\text{ Number of favourable cases }}{\text{ Total number of cases }} = \frac{3}{15} = \frac{1}{5}\]
APPEARS IN
संबंधित प्रश्न
A die is thrown. Find the probability of getting:
a multiple of 2 or 3
A card is drawn at random from a pack of 52 cards. Find the probability that the card drawn is:
a ten
In a school only, 3 out of 5 students can participate in a competition. What is the probability of the students who do not make it to the competition?
Numbers 1 to 5 are written on separate slips, i.e one number on one slip and put in a box. Wahida pick a slip from the box without looking at it. What is the probability that the slip bears an odd number?
When a die is thrown, list the outcome of an event of getting a number not greater than 5.
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?
Following cards are put facing down:
| A | E | I | O | U |
What is the chance of drawing out A or I?
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 a number less than 1 on throwing a die.
Classify the following events:
A team winning the match.
