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Does the probability of winning increase if I bet on numbers in the lottery that have been drawn less frequently in the past?

ByLorenzZH67

A friend of mine claims that if he bets on numbers in the lottery that have been drawn less frequently in the past, he can slightly increase his probability of winning. He cites some statistical theory (unfortunately, he can't name a source) that supports his theory. Who can prove that he's wrong, even if the…

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Willy1729
Willy1729
10 months ago

Hello,

Tasks a and b were correct.

At c, it does not even mean everything except once and not at all.

So you have to calculate the likelihood that the event arrives exactly once and that the result is 1 .

For task d, you have to go over the counter probability.

In order to arrive at least once at 95 % event B, the probability that it does not arrive at all must fall to 5 % or less.

You are counting (19/27)^n≤=0.05.

Task e is correct.

For task f you count (8/27+1/27)^5. This is the probability for five times consecutive B or 2xx2.

Expected value for B at 100 games is about 30. It is unusual that only deviations were observed downward, but not upward.

Maybe something is wrong with the device.

Best regards,

Willy

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Lisaa950
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Lisaa950
10 months ago
Reply to  Willy1729

Thank you.

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