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Mathematics 16 Online
OpenStudy (anonymous):

You toss two coins. What is the probability P that both are tails?

OpenStudy (camper4834):

first what is the probability of tossing one coin?

OpenStudy (camper4834):

and getting tails

OpenStudy (anonymous):

HH TH HT TT

OpenStudy (anonymous):

um 1/2 @camper4834

OpenStudy (camper4834):

now my next question is exactly the same. if i toss coin two, what are the chances that it will become a tail

OpenStudy (anonymous):

1/2

OpenStudy (anonymous):

@camper4834

OpenStudy (camper4834):

great. that is the probability of just the first coin or just the second coin. in probability when you want both together you MULTIPLY

OpenStudy (camper4834):

1/2 * 1/2

OpenStudy (anonymous):

1/4

OpenStudy (camper4834):

yup.

OpenStudy (camper4834):

sourwing had a different approach but also a very good way to find out the answer

OpenStudy (anonymous):

ok i think yours was kind of easier though

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