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

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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.

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Anonymous 0 Comments

Because there’s an overlap where you can have multiple 7% chances come through.

Imagine a coin flipped twice, compared to a sure chance of 100%.

Flipping a coin twice gives you 50% chance to get 1 heads, 25% chance to get 2 heads, and 25% chance to get no heads. You still, on average, get 1 head (1*50%+2*25%), but that isn’t the same as having a 100% chance to get a head.

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