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What are the odds of getting heads twice in a row with a coin?
"The same as getting heads the first time, a one-in-two chance." No It's Not! "One in two chance" means 50/50 chance. The odds of getting 2 in a row are not 50/50. I don't know what it is because that's how I arrived at this question. But if my friend were to bet me that he could get to heads in a row.... I'd take him up on that bet everytime, saying that he couldn't. He'd win a couple times here and there but in the end would lose money. It's not 50/50.
What are the odds of getting heads if I toss a coin twice?
There are 4 possible outcomes, HH, HT, TH, TT. If we assume the odds of tossing heads or tails on any toss is 1/2 (50:50) the odds of tossing heads twice in a row is 1/4 (or 25%).
Which has the best odds lotto Picking 6 out of 52 numbers or picking 5 out of 36 numbers?
The number of combinations of 52 numbers taken 6 at a time is 52 * 51 * 50 * 49 * 48 * 47 / 6 / 5 / 4 / 3 / 2 = 20,358,520. The number of combinations of 36 numbers taken 5 at a time is 36 * 35 * 34 * 33 *32 / 5 / 4 / 3 / 2 = 376,992. The odds are better with 5 out of 36 numbers, but the payout is probably less as well.
If the odds are 500-1 and you put 50 on it how much will you win?
Multiplying the £50 stake by 500 gives 50 x 500 = 25000. Adding the original stake you receive back gives 25050. Don't forget to include the unit of currency.
How many 20p coins would you get for ten pounds?
50
