Browse by Stream
QnA
Home
QnA
Go To Your Study Dashboard

Get Answers to all your Questions

header-bg qa
  • Home
  • School
  • Explain Solution R.D. Sharma Class 12 Chapter 30 Probability Exercise Multiple Choice Questions Question 62 Maths Textbook Solution.

Explain Solution R.D. Sharma Class 12 Chapter 30 Probability  Exercise Multiple Choice Questions Question 62 Maths Textbook Solution.

Answers (1)

Answer:

Hint: You must know the rules of finding probability.

Given: A die thrown once.

Let A be the event that the number obtained is greater than 3 and 8 be the event number obtained is less than 5

Solution: A : number of greater than 3 { 4 , 5 ,6 }

B : number of less than 5 { 1 , 2 , 3 , 4 }

\begin{aligned} &A \cap B=\{4\} \\ &P(A)=\frac{3}{6}, P(B)=\frac{4}{6}, P(A \cap B)=\frac{1}{6} \end{aligned}

By addition theorem of probability,

\begin{aligned} &P(A \cup B)=P(A) \times P(B)-P(A \cap B) \\ &P(A \cup B)=\frac{3}{6}+\frac{4}{6}-\frac{1}{6} \\ &=\frac{3+4-1}{6} \\ &=\frac{6}{6}=1 \end{aligned}

Posted by

infoexpert21

View full answer

Crack CUET with india's "Best Teachers"

  • HD Video Lectures
  • Unlimited Mock Tests
  • Faculty Support
cuet_ads

Similar Questions

Trending Articles/News

anam-khan

CBSE Board exams twice a year from 2025, no plan for semesters: MoE
anam-khan

CBSE Class 12 board exams 2025 to have 50% competency-based questions; no change in 10th
anam-khan

CBSE Class 12 board exams 2024 over; expected result date, trends of last 10 years

Latest Question