Possible outcome of a coin - probability based question, Mathematics

A coin is tossed twice and the four possible outcomes are assumed to be equally likely. If A is the event,  both head and tail have appeared , and B be the event at most one tail is observed  find

P(A/B)

A) 1/3      B) 2/3     C) ½    D) ¼

Here, S={HH,HT,TH,TT},A={HT,TH} and B={HH,HT,TH,}

A∩B={HT,TH}

Now(A)=n(A)/n(s)=2/4=1/2,P(B)=n(B)/n(S)=3/4

And (A∩B)=n(A∩B)/n(S)=2/4=1/2

P(A/B)=P(A∩B)/P(B)=1/2/3/4  = 2/3.

Posted Date: 7/23/2012 3:29:13 AM | Location : United States







Related Discussions:- Possible outcome of a coin - probability based question, Assignment Help, Ask Question on Possible outcome of a coin - probability based question, Get Answer, Expert's Help, Possible outcome of a coin - probability based question Discussions

Write discussion on Possible outcome of a coin - probability based question
Your posts are moderated
Related Questions
A small square is located inside a bigger square. The length of the small square is 3 in. The length of the large square is 7m. What is the area of the big square if you take out t

Write the subsequent 2nd order differential equation as a system of first order, linear differential equations. 2 y′′ - 5 y′ + y = 0  y (3) = 6  y′ (3) = -1  We can wri

Using the same mean and standard deviation as mean m = 20.1 and a standard deviation s = 5.8. Joe was informed that he scored at the 68 th percentile on the ACT, what was Joe's ap


The probability that a person will get an electric contract is 2/5 and the contract that he will not get plumbing  contract is 4/7.If the probability of getting at least one contra

use the bionomial theorem to expand x+2/(2-X)(WHOLE SQUARE 2)

how to change sin 24 degree in digits?

The diagram below shows the cross section of a pipe  1/2  inch thick that has an inside diameter of 3 inches. Determine the area of the shaded region in terms of π. a. 8.75π i

|a.x|=1 where x = i-2j+2k then calculate a

Interesting relationship between the graph of a function and the graph of its inverse : There is one last topic that we have to address quickly before we leave this section.  Ther