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Straight Lines
Question
A die is thrown, find the probability of the following event:
A number less than 6 will appear.
Solution
A die is thrown.
∴ The sample space is: S = {1, 2, 3, 4, 5, 6}
n(S) = 6
Event: a number less than 6 will appear.
A = {1, 2, 3, 4, 5} 
n(A) = 5
Hence, 
Some More Questions From Straight Lines Chapter
An experiment consists of recording boy-girl composition of families with 2 children. What is the sample space if we are interested in knowing whether it is a boy or girl in the order of their births?
An experiment consists of recording boy-girl composition of families with 2 children. What is the sample space if we are interested in the number of girls in the family?
An experiment consists of rolling a die and then tossing a coin once if the number on the die is even. If the number on the die is odd, the coin is tossed twice. Write the sample space for this experiment.
A coin is tossed. If it shows a tail, we draw a ball from a box which contains 2 red and 3 black balls. If it shows head, we throw a die. Find the sample space for this experiment.
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Mock Test Series
Mock Test Series