Advertisements
Advertisements
प्रश्न
In a single throw of a die, find the probability of getting a number
(i) greater than 2
(ii) less than or equal to 2
(iii) not greater than 2.
उत्तर
A die has six numbers = 1, 2, 3, 4, 5, 6
∴ Number of possible outcomes = 6
∴ P(E) = `4/6 = 2/3`
(ii)
Less than or equal to 2
Number of favourable outcomes = 1,2
∴ P(E) = `2/6 = 1/3`
(iii)
Not greater than 2
Number of favourable outcomes = 1,2
∴ P(E) = `2/6 = 1/3`
APPEARS IN
संबंधित प्रश्न
Two digit numbers are formed using the digits 0, 1, 2, 3, 4, 5 where digits are not repeated.
P is the event that the number so formed is even.
Q is the event that the number so formed is greater than 50.
R is the event that the number so formed is divisible by 3.
Then write the sample space S and events P, Q, R using set notation.
Two coins are tossed simultaneously. Write the sample space (S), n(S), the following event A
using set notation and n(A), where ‘A is the event of getting at least one head.’
Two different dice are rolled simultaneously. Find the probability that the sum of numbers appearing on the two dice is 10 ?
A Group consists of 12 persons, of which 3 are extremely patient, other 6 are extremely honest and rest are extremely kind. A person from the group is selected at random. Assuming that each person is equally likely to be selected, find the probability of selecting a person who is (i) extremely patient (ii) extremely kind or honest.
Which of the above values you prefer more?
A group consists of 12 persons, of which 3 are extremely patient, other 6 are extremely honest and rest are extremely kind. A person form the group is selected at random. Assuming that each person is equally likely to be selected, find the probability of selecting a person who is extremely patient
Red queens and black jacks are removed from a pack of 52 playing cards. A card is drawn at random from the remaining cards, after reshuffling them. Find the probability that the card drawn is a queen
A die thrown once. What is the probability of getting a number lying between 2 and 6?
A number is selected from first 50 natural numbers. What is the probability that it is a multiple of 3 or 5?
From the letters of the word ''MOBILE", a letter is selected. The probability that the letter is a vowel, is
What is the probability that a non-leap year has 53 Sundays?
Two numbers 'a' and 'b' are selected successively without replacement in that order from the integers 1 to 10. The probability that\[\frac{a}{b}\] is an integer, is
Two dice are rolled together. Find the probability of getting such numbers on the two dice whose product is 12.
A card is drawn at random from a well-shuffled pack of 52 cards. Find the probability that the card drawn is neither a red card nor a queen.
A game consists of tossing a one-rupee coin three times, and noting its outcome each time. Find the probability of getting three heads.
Two dice are thrown together. The probability of getting the same number on the both dice is
From a well-shuffled deck of 52 cards, one card is drawn at random. What is the probability of getting a queen?
A die is thrown, find the probability of getting:
a number greater than 4
A die is thrown once. Find the probability of getting:
a prime number
A die is thrown once. Find the probability of getting:
a number greater than 6.
Getting a prime number on throwing a die is an event.
