Practicing Success

Target Exam

CUET

Subject

-- Mathematics - Section B1

Chapter

Probability

Question:
A coin is tossed thrice and all eight outcomes are assumed equally likely. Let event E be “the first throw results in the head” and event F be “the last throw results in the tail”. What is the probability of E∩F ?
Options:
1/4
1/3
1/2
1/8
Correct Answer:
1/2
Explanation:
S = {HHH, HHT, HTH, THH, HTT, THT, TTH, TTT} E: first throw results in head = {HHH,HHT,HTH,HTT} F: Last throw result in tail = {HHT, HTT, THT, TTT}