Recent content by gdextreme

WTF! Makes me wanna cry :(

PLease post some benchmarks when you finish this build. I sure would like to see how the CPU compares with QX9650, etc.

Its pretty common to see shooting stars. Once while at an astronomy camp the instructor also showed us an artificial satellite! We saw it without telscopes with our bare eyes!

Oh that happened like 2 km away from my house. Right in front of the school I passed out from!

Or you could borrow my nano suit (I got it from Nomad in Crysis). Go into superstrength mode and just punch it. I bet it'll be done in like 2-3 minutes :D

OP do you have any more puzzles like these :)?

It is given in the question that 4 heads have already occured. But you have included the probability of that happening too. Think like this: There are 19 regular coins which have a probability of 0.5 for showing head on the 5th try (Note here that we have not included the probability of 4 heads...

Here you're ignoring that the coin already gave 4 heads earlier. I got to ask this question to my teacher for a confirmation.

In fact they do - thats why this is a puzzle! If there was no trick coin then it would not have not made a difference. With all regular coins the answer would be 1/2.

Yeah that has been assumed to be true in his calculation as well as mine. Checkout my somewhat detailed calculations.

Oh no! already solved by somebody :(.

Lets calculate the probability of 4 consecutive heads (1/20)(1) + (19/20)(1/{(2)^4}) = 7/64 Now we calculte probabilty of a trick coin (event A) given that 4 heads in a row (event B) has occured We need P(A/B) = P(B/A) {P(A)}/P(B) = {(1) (1/20)} / (7/64) = 16/35 Now to calculate...

Shouldnt the nmber of coins in the jar be given? Oh sorry I didn't read the title description completely

Find the Eq. of lines AB, BC , AC. Find points of intersections of Line from origin to (4,8) to AB, BC, AC by solving the equations. I'm feeling lazy atm so didn't solve it damn long process. Once you know the points of intersection use distance formula to find the distance between them.

In fact it will be more of an issue. Then he will be more efficiently heating his room. :D Personlly I'd go for a Q9550.