00:01
For this problem, for part one, we are asked, if you flip a fair coin, what is the chance of the coin coming up heads? well, we assume that heads or tails are equally probable, so the probability of it coming up heads would be just 0 .5.
00:16
For part two, you're asked, if i draw a playing card from a shuffled deck, what is the chance of the card being red? so, we have that there are two colors in a deck of cards, black and red, each with 26 cards.
00:31
So the probability of red would be equal to 26 number of red cards divided by the total number of cards, 52.
00:42
So 26 over 52, unsurprisingly, that's 1 over 2, so the probability there is 0 .5.
00:49
For part 2, we're asked if you flip two fair coins at the same time, what is the chance of both coins coming up heads? so the probability of getting two heads would be equal to probability of getting heads on the first coin times probability of heads on the second.
01:06
0 .5 times 0 .5 gives us a result of 0 .25.
01:10
Then for part 4, drawing two playing cards, chance of both cards being read, since we know that the probability of one red is 0 .5, just like the heads or tails, we'd have probability of 2 red, same as probability.
01:28
Of two heads, that's 0 .25...