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1. ## Probability formula question

Let's say I decide to flip a fair coin 45 times. What is the formula I would use to figure out what the chances are of getting 28 or more Heads? I'm nearly certain that this is a simple formula but for some reason I can't remember it. Any help is appreciated. Thanks!

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2. Probability Mass Function. =binom.dist(28,45,0.5,False)

Its coming up like 3% or so
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3. Originally Posted by Waterstpub87
Probability Mass Function. =binom.dist(28,45,0.5,False)

Its coming up like 3% or so
Thanks a bunch!

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Originally Posted by Waterstpub87
Probability Mass Function. =binom.dist(28,45,0.5,False)

Its coming up like 3% or so

5. Is the coin black?

6. Originally Posted by Bostongambler
Is the coin black?
No, but what has a Head and a Tail and has no legs and is often brown?

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7. Originally Posted by PeterJohnson
Not the person you want to ask. I am normally the person who tell everyone not to buy stuff.

However, long term, buy an S&P 400 etf.

Not into crypto stuff at all.

8. Originally Posted by JohnGalt2341
Let's say I decide to flip a fair coin 45 times. What is the formula I would use to figure out what the chances are of getting 28 or more Heads? I'm nearly certain that this is a simple formula but for some reason I can't remember it. Any help is appreciated. Thanks!

The 3% answer was erroneous, as the chances of getting EXACTLY 28 heads is 3.1%, whereas since you asked what the chances of getting 28 OR MORE heads is, the correct answer is 6.76%

https://stattools.crab.org/Calculato...alculator.html
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9. Originally Posted by indio