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History

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Medieval India
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Quick random quizMixed questions, start right away Practice sets by topic20–25 MCQs per topic, answers explained

History

Ancient India
Medieval India
Modern India
India after independence
World history
Art & culture

Polity & society

Polity & constitution
International relations
Indian society
Ethics & integrity

Economy & geography

Indian economy
Indian geography
World geography
Environment & ecology

Science & more

Science & tech
General science
General knowledge

Aptitude

Quantitative aptitude
Reasoning
English

Exams

UPSC Civil ServicesUPSC · Prelims · Mains · Interview
SSC CGLSSC · Tier 1 · Tier 2
CDSUPSC · twice a year · SSB interview
NDAUPSC · twice a year · SSB interview
CAPFUPSC · written test · interview
All exams →

Study

History

Ancient India
Medieval India
Modern India
India after independence
World history
Art & culture

Polity & society

Polity & constitution
International relations
Indian society
Ethics & integrity

Economy & geography

Indian economy
Indian geography
World geography
Environment & ecology

Science & more

Science & tech
General science
General knowledge

Aptitude

Quantitative aptitude
Reasoning
English

PYQ papers Current affairs Saved

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Probability

Probability: Formulas, Shortcuts and Solved Examples

Probability questions measure how likely an event is, as a number from 0 to 1. This…
For two events A and B, what is the correct formula for P(A union B)?
How many total cards are there in a standard pack, and how many suits?
For any event E, what is the valid range of P(E)?
What is the probability of an impossible event?
What is the probability of the entire sample space S occurring, P(S)?
What is the correct formula for the probability of an event E, given a sample space S?
What is the set of all possible outcomes of an experiment called?
The probability that a certain event E will occur is 1/4. Find the probability that E will not occur.
The probability that a certain event E will occur is 3/10. Find the probability that E will not occur.
The probability that a certain event E will occur is 1/6. Find the probability that E will not occur.
The probability that a certain event E will occur is 7/20. Find the probability that E will not occur.
The probability that a certain event E will occur is 1/3. Find the probability that E will not occur.
The probability that a certain event E will occur is 5/12. Find the probability that E will not occur.
The probability that a certain event E will occur is 2/5. Find the probability that E will not occur.
The probability that a certain event E will occur is 3/8. Find the probability that E will not occur.
A bag contains 8 red, 9 blue, and 6 green balls. Two balls are drawn at random. Find the probability that both are blue.
A bag contains 10 red, 3 blue, and 6 green balls. Two balls are drawn at random. Find the probability that both are green.
A bag contains 5 red, 6 blue, and 1 green balls. Two balls are drawn at random. Find the probability that both are blue.
A bag contains 5 red, 9 blue balls. Two balls are drawn at random. Find the probability that both are blue.
A bag contains 4 red, 3 blue, and 2 green balls. Two balls are drawn at random. Find the probability that both are blue.
A bag contains 7 red, 6 blue, and 1 green balls. Two balls are drawn at random. Find the probability that both are blue.
A bag contains 6 red, 3 blue, and 6 green balls. Two balls are drawn at random. Find the probability that both are green.
A bag contains 3 red, 9 blue, and 4 green balls. Two balls are drawn at random. Find the probability that both are blue.
A bag contains 10 red, 3 blue, and 6 green balls. Two balls are drawn at random. Find the probability that both are red.

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