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#1 2023-11-13 19:15:51

sologuitar
Member
Registered: 2022-09-19
Posts: 467

Probability of Die and Coin

A die is rolled and then a coin is tossed. What is the probability that the die shows an even number AND the coin shows a tail?


Let me see.


Probability questions are a bit fuzzy.
A die has digits 1 to 6. I know that 3/6 or 1/2  are even numbers.


P(even an even number) = 3/6 = 1/2.


P(coin shows a tail) = 1/2


P(even number AND tail) = (1/2)(1/2) or 1/4.


You say?

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#2 2023-11-13 20:51:32

Bob
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Registered: 2010-06-20
Posts: 9,916

Re: Probability of Die and Coin

correct


Children are not defined by school ...........The Fonz
You cannot teach a man anything;  you can only help him find it within himself..........Galileo Galilei
Sometimes I deliberately make mistakes, just to test you!  …………….Bob smile

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#3 2023-11-14 03:26:13

sologuitar
Member
Registered: 2022-09-19
Posts: 467

Re: Probability of Die and Coin

Bob wrote:

correct

So, for the probability of AND questions we multiply.

For the probability of OR questions we add.

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#4 2023-11-14 21:24:16

Bob
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Registered: 2010-06-20
Posts: 9,916

Re: Probability of Die and Coin

That sounds about right.

B


Children are not defined by school ...........The Fonz
You cannot teach a man anything;  you can only help him find it within himself..........Galileo Galilei
Sometimes I deliberately make mistakes, just to test you!  …………….Bob smile

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#5 2023-11-16 18:04:49

sologuitar
Member
Registered: 2022-09-19
Posts: 467

Re: Probability of Die and Coin

Bob wrote:

That sounds about right.

B

I hope to find the needed time in the near future to do an extensive self-study of probability. I find probability to be interestingly challenging.

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