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प्रश्न
In a single throw of a dice, find the probability of getting 8.
उत्तर
Sample space = {1, 2, 3, 4, 5, 6}
n(S) = 6
There are only six possible outcomes in a single throw of a dice. If we want to find probability of 8 to come up, then in that case number of possible or favourable outcome is 0 (zero)
n(E) = 0
Probability of getting a 8 = P(S)
= `(n(E))/(n(S))`
= `0/6`
= 0
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संबंधित प्रश्न
A bag contains 3 white, 5 black and 2 red balls, all of the same shape and size. A ball is drawn from the bag without looking into it, find the probability that the ball drawn White ball.
In a single throw of a dice, find the probability of getting a number not greater than 4.
A dice is thrown once. Find the probability of getting an even number or a multiple of 3.
The arrow is rotated and it stops randomly on the disc. Find out on which colour it may stop.
Write sample space ‘S’ and number of sample point n(S) for the following experiment. Also write events A, B, C in the set form and write n(A), n(B), n(C).
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Event A : Even number on the upper face.
Event B : Odd number on the upper face.
Event C : Prime number on the upper face.
250 lottery tickets were sold and there are 5 prizes on these tickets. If Kunal has purchased one lottery ticket, what is the probability that he wins a prize?
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Two dice are thrown, find the probability of getting
(1) The sum of numbers on their upper faces is at least 10.
(2) The sum of the numbers on their upper faces is divisible by 5.
(3) The number on the upper face of the first die is greater than the number on the upper face of the second die.
Form a ‘Road Safety Committee’ of two, from 2 boys (B1, B2) and 2 girls (G1, G2).
Complete the following activity to write the sample space :
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Reason (R): The sample space for even numbers on a die is {2, 4, 6}.
