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Class 12

MATHS

PROBABIILITY

Updated On: 3-6-2021

Answer

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Answer

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Solution

Given

and

<br> and A and B are independent events <br> (i)

(A and B)

<br>

<br> (ii)

(A and not B)

<br>

<br>

<br>

<br> (iii)

(A or B)

<br>

<br>

<br>

<br>

<br> (iv)

(none of A and B) <br>

(not A and not B) <br>

<br>

<br>

<br>

Introduction and definition

Various terms learned in earlier classes

Verbal description of set and equivalent set theory notation and proof with venn diagram

Probability of an event: definition

What is the probability that four 'S' comes consecutively in the word 'MISSISSIPPI

Compound events and definition of conditional probability

A die is thrown twice and the sum of the numbers appearing is observed to be 6. What is the conditional probability that the number 4 has appeared at least once?

Multiplication Theorems on Probability

A bag contains 5 white; 7 red and 8 black balls. If four balls are drawn one by one without replacement; find the probability of getting all white balls.

Addition Theorem Of Probability

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