Welcome to cbsenotes.com! To post messages or access any member only section, you will need an account. Create your free account now.
CBSE Notes 2011-2012 » XI-Maths

# Probability-XI

## In a group of 10 outstanding slaidents in a school, there are 6 boys and 4 girls, 3 students are to ...

In a group of 10 outstanding slaidents in a school, there are 6 boys and 4 girls, 3 students are to be selected out of these at random for a debate competition. Find the probability that one is boy and 2 are girls.

## From a well-shuffled pack of 52 cards, a card is drawn at random. Find the probability that it is ei...

From a well-shuffled pack of 52 cards, a card is drawn at random. Find the probability that it is either a heart or a queen.

## From a well-shuffled pack of 52 cards, a card is drawn at random. Find the probability that either i...

From a well-shuffled pack of 52 cards, a card is drawn at random. Find the probability that either it is an ace of red colour or a card of black colour.

## A committee of 5 Principals is to be selected from a group of 6 Gent Principals and 8 Lady Principal...

A committee of 5 Principals is to be selected from a group of 6 Gent Principals and 8 Lady Principals. If the selection is made randomly, find the probability that there are 3 Lady Principals and 2 Gent Principals.