Q. 8 B4.0( 4 Votes )

# A coin is tossed

When a coin is tossed three times, we have following outcomes

{HHH, HHT, HTH, THH, HTT, THT, TTH, TTT}

Total outcomes =8

A= at least two heads ={HHH, HHT, THH, HTH} = 4

Therefore probability of occurrence of event A = P(A) = B= at most two heads ={HHT, HTH, HHT, THT, TTH, TTT, HTT} =7

Therefore probability of occurrence of event B = P(B) = Now Also we want P (A B) = probability of occurrence of both events A and B

= occurrence of atleast and atmost two heads ={HHT, HTH, THH} =3

Hence, probability of occurrence of both events A and B = P (A B)= Therefore, = = (answer)

Rate this question :

How useful is this solution?
We strive to provide quality solutions. Please rate us to serve you better.
Try our Mini CourseMaster Important Topics in 7 DaysLearn from IITians, NITians, Doctors & Academic Experts
Dedicated counsellor for each student
24X7 Doubt Resolution
Daily Report Card
Detailed Performance Evaluation view all courses RELATED QUESTIONS :

State True or FalMathematics - Exemplar

Fill in theMathematics - Exemplar

A speaks truth inMathematics - Board Papers

Often it is takenMathematics - Board Papers

Assume that each Mathematics - Board Papers

A bag X contains Mathematics - Board Papers