Why is a single 70% chance different to Ten 7% chances

1.22K views

Like. I know they are different and that one is less likely. But could someone explain this in a way that I can explain it to my partner? I know it is true but cannot remember anything about why and how to explain my point.

In: 6

40 Answers

Anonymous 0 Comments

Change the numbers a bit to keep it simple. Flip a coin, 50% chance to get heads up on one toss. If you do that twice, you have the following equal possibilities:

* Heads+Heads
* Heads+Tails
* Tails+Heads
* Tails+Tails

So, 3 out of 4, or 75% chance to get one heads up. Which is different from a 2×50%=100% chance.

You are viewing 1 out of 40 answers, click here to view all answers.