Use app×
Join Bloom Tuition
One on One Online Tuition
JEE MAIN 2025 Foundation Course
NEET 2025 Foundation Course
CLASS 12 FOUNDATION COURSE
CLASS 10 FOUNDATION COURSE
CLASS 9 FOUNDATION COURSE
CLASS 8 FOUNDATION COURSE
0 votes
1.8k views
in Mathematics by (72.7k points)

An unbiased coin is tossed. If the result in a head, a pair of unbiased dice is rolled and the number obtained by adding the numbers on the two faces is noted. If the result is a tail. a card from a well shuffled pack of eleven cards numbered 2,3, 4,..., 12 is picked and the number on the card is noted. What is the probability that the noted number is either 7 or 8?

1 Answer

+1 vote
by (69.9k points)
selected by
 
Best answer

Let, E1 be the event noted number is 7. 

Ebe the event noted number is 8. 

H be getting head on coin. 

I be getting tail on coin. 

.'. By law of Total Probability,

Welcome to Sarthaks eConnect: A unique platform where students can interact with teachers/experts/students to get solutions to their queries. Students (upto class 10+2) preparing for All Government Exams, CBSE Board Exam, ICSE Board Exam, State Board Exam, JEE (Mains+Advance) and NEET can ask questions from any subject and get quick answers by subject teachers/ experts/mentors/students.

Categories

...