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Question
The arrow is rotated and it stops randomly on the disc. Find out on which colour it may stop.
Solution
Sample Space (S) = {Red, Purple, Orange, Yellow, Blue, Green}
∴ n(S) = 6
Hence, the number of colours on which the arrow may stop is 6.
RELATED QUESTIONS
A card is drawn from the pack of 25 cards labeled with numbers 1 to 25. Write the sample space for this random experiment.
‘A coin is tossed’. Write the sample space ‘S’.
A die is thrown. Write the sample space (S) and number of sample points n(S) and also write event A of getting even number on the upper surface and write n(A).
In a single throw of a dice, find the probability of getting a number less than or equal to 4.
In a single throw of a dice, find the probability of getting 5.
A dice is thrown once. Find the probability of getting an even number.
A dice is thrown once. Find the probability of getting a number between 3 and 8.
For the following experiment write sample space ‘S’ and number of sample points n(S).
One coin and one die are thrown simultaneously.
For the following experiment write sample space ‘S’ and number of sample points n(S).
Two-digit numbers are formed using digits 2, 3 and 5 without repeating a digit.
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).
One die is rolled,
Event A : Even number on the upper face.
Event B : Odd number on the upper face.
Event C : Prime number on the upper face.
If two coins are tossed, find the probability of the following event.
Getting no head ?
A two digit number is formed with digits 2, 3, 5, 7, 9 without repetition. What is the probability that the number formed is a multiple of 5 ?
Do the following activity -
Activity I : Total number of students in your class, n(S) =
Number of students from your class, wearing spectacles, n(A) = 
Probability of a randomly selected student wearing spectacles, P(A) =
Probability of a randomly selected student not wearing spectacles, P(B) = 
There are 35 students in a class of whom 20 are boys and 15 are girls. From these students one is chosen at random. What is the probability that the chosen student is a boy.
Two coins are tossed simultaneously. Write the sample space ‘S’.
A die is thrown. Write the sample space. If P is the event of getting an odd number, then write the event P using set notation.
When a dice is thrown, the number of sample points in the sample space are ______
Two coins are tossed simultaneously. Write the sample space (S) and expected sample points in the given events by completing the activity.
- Event A: to get at least one head.
- Event B: to get no head.
Activity: Let ‘S’ be the sample space, when two coins are tossed simultaneously.
∴ S = `{square, HT, TH, square}`
i. Event A: to get at least one head.
∴ A = `{HH, square, TH}`
ii. Event B: to get no head.
∴ B = `{square}`.
