CBSE · Class 6-12

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Class 10 · Mathematics (Basic) · Unit 14: Probability

Event and Favourable Outcomes

Lesson 2 of 6

An event

E

is a subset of

S

. If

E

has

k

favourable outcomes out of

n

equally likely outcomes, then

P(E) = k/n

. E.g. rolling an even number on a die:

E = \{2,4,6\}

,

P(E) = 3/6 = 1/2

.

Random Experiments and Outcomes

Complementary Events

All lessons in this unit