Civil Services Prepby Garima Malik & Nitin Sangwan

Agriculture and Food Systems CSAT: Comprehension, Reasoning and Numeracy Current Affairs Study Disaster Risk and Management Economy and Development Qualifying English Environment, Ecology and Climate Essay and GS Answer Writing Ethics, Integrity and Aptitude Indian and World Geography Governance and social justice Ancient and Medieval History, Art and Culture Modern Indian History Qualifying Indian Language Internal Security International Relations Polity and Constitution General Science and Technology Indian Society Modern World History

PYQs Evaluate your answer

Current affairs Common questions

Account

Home
Syllabus
CSAT: Comprehension, Reasoning and Numeracy
Sets, counting and elementary probability
Elementary probability

UPSC · Prelims and Mains

CSAT: Comprehension, Reasoning and Numeracy

← All subjects

Find a topic

CSAT: Comprehension, Reasoning and Numeracy

Passage comprehension
Interpersonal communication
Decision making and problem solving
Statements, deduction and syllogisms
Analytical arrangements and relations
Patterns, codes and mental ability
Number relations and calculation
Ratios, proportions and mixtures
Percentages and commercial arithmetic
Equations and quantitative word problems
Time, motion and work
Geometry, mensuration and spatial quantities
Sets, counting and elementary probability
Data interpretation and sufficiency

← Sets, counting and elementary probability

Elementary probability

Find a topic

Sample space
Event
Equally likely outcomes
Probability as favourable outcomes over total outcomes
Complementary event
Impossible and certain events

Civil Services Prep

nitin@preps.in

Study

Home Prelims practice Syllabus Mains evaluation Plans and pricing Current affairs Mentorship Mains PYQ library

Explore

Prelims PYQs Prelims MCQs Mains PYQs Current affairs archive Blog

Exam information

UPSC syllabus Exam calendar Eligibility Prelims cut off Prelims 2026 answer key

Legal

Privacy policy Terms of service