00:01
Okay then we have the three cards.
00:02
So the first one is both sides are red, the second card, both sides are black, and the third card's three.
00:13
We have red, one side, black the other.
00:17
So i pick one of these cards at random.
00:24
I can choose card one, card two, or card three, and an equal chance for each one.
00:32
So one third chance of choosing either card 1, 2 or 3.
00:39
Now, if i choose card 1, both sides are red.
00:45
So the outcome will be red, a certain event 1.
00:50
If i choose card 2, the result is black, a certain event that the card has a black face upwards.
01:01
But card 3 would be either red or black, even chance, for each one so one half and one half.
01:12
Now i'm dealing here with red being upper side, upper most.
01:21
Look at the one where it's red...