Drawing odds
April 18th, 2021 at 11:35:11 AM
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I was in a drawing 7 times,each time I had a one in ten chance of winning the top prize. I won the top prize 3 times. What were the odds of that happening.
The mountain is tall but grass grows on top of the mountain.
April 18th, 2021 at 12:35:04 PM
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The odds of it happening exactly three times = (1/10)^3 x (9/10)^4 x C(7,3) = about 1 / 43.5.
The odds of it happening at least three times = about 1 / 39.
The odds of it happening at least three times = about 1 / 39.
April 18th, 2021 at 12:39:10 PM
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Thanks ThatDonGuyQuote: ThatDonGuyThe odds of it happening exactly three times = (1/10)^3 x (9/10)^4 x C(7,3) = about 1 / 43.5.
The odds of it happening at least three times = about 1 / 39.
The mountain is tall but grass grows on top of the mountain.
