Q. 8 A3.7( 3 Votes )

A coin is tossed

Answer :

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


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


Total outcomes =8


From above outcomes,


A= Heads on third toss = {HHH, HTH, THH, TTH} =4


Therefore probability of occurrence of event A = P(A) =


B= heads on first two tosses = {HHH, HHT} =2


Therefore probability of occurrence of event B = P(B) =


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


=heads on first two tosses and heads on third toss


=heads on all tosses = {HHH} = 1(Occurrence Of both A and B events


Therefore, P (A B) =


Hence, =


==(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
caricature
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