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11th CBSE
IMPORTANT
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Three numbers are chosen at random from numbers 1 to 30. Write the probability that the chosen numbers are consecutive.

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Important Questions on Probability

MEDIUM
11th CBSE
IMPORTANT
MATHEMATICS for CLASS XI>Chapter 33 - Probability>VERY SHORT ANSWER QUESTIONS (VSAQs)>Q 2
n(>3) persons are sitting in a row. Two of them are selected. Write the probability that they are together. (Write answer in terms of n)
EASY
11th CBSE
IMPORTANT
MATHEMATICS for CLASS XI>Chapter 33 - Probability>VERY SHORT ANSWER QUESTIONS (VSAQs)>Q 3
A single letter is selected at random from the word 'PROBABILITY'. What is the probability that it is a vowel?
MEDIUM
11th CBSE
IMPORTANT
MATHEMATICS for CLASS XI>Chapter 33 - Probability>VERY SHORT ANSWER QUESTIONS (VSAQs)>Q 4
What is the probability that a leap year will have 53 Fridays or 53 Saturdays?
MEDIUM
11th CBSE
IMPORTANT
MATHEMATICS for CLASS XI>Chapter 33 - Probability>VERY SHORT ANSWER QUESTIONS (VSAQs)>Q 5
Three dice are thrown simultaneously. If the probability of getting 15 as the sum is p, then find the value of 108p.
MEDIUM
11th CBSE
IMPORTANT
MATHEMATICS for CLASS XI>Chapter 33 - Probability>VERY SHORT ANSWER QUESTIONS (VSAQs)>Q 6
If the letters of the word 'MISSISSIPPI' are written down at random in a row, what is the probability that four S's come together.
EASY
11th CBSE
IMPORTANT
MATHEMATICS for CLASS XI>Chapter 33 - Probability>VERY SHORT ANSWER QUESTIONS (VSAQs)>Q 7
What is the probability that the 13th day of a randomly chosen month is Friday?
MEDIUM
11th CBSE
IMPORTANT
MATHEMATICS for CLASS XI>Chapter 33 - Probability>VERY SHORT ANSWER QUESTIONS (VSAQs)>Q 8
Three of the six vertices of a regular hexagon are chosen at random. What is the probability that the triangle with these vertices is equilateral.
MEDIUM
11th CBSE
IMPORTANT
MATHEMATICS for CLASS XI>Chapter 33 - Probability>VERY SHORT ANSWER QUESTIONS (VSAQs)>Q 9
If E1 and E2 are independent events, write the value of PE1∪E2∩E1¯∩E2¯.