Q&A for How to Calculate Lotto Odds

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Question

What are the odds of selecting 4 numbers from 5 selections in a 59 number draw?

Community Answer

There are 5*54 ways to get 4 of 5 numbers to match (5 ways to choose which number doesn't match times 54 wrong numbers it could be if it doesn't match). So there are 270 tickets that could match exactly 4 out of 5 numbers, not counting the one that matches all 5. Compare that with the overall number of tickets available, which is C(59,5) or 59*58*57*56*55/120, and you get odds of about 1:18541.

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Question

What are the odds of picking 4 numbers from 28 and from 32?

Community Answer

For the first scenario, it is 1(28x28x28x28) as you have a 1 in a 28 chance of picking one number, and you do this 4 times. The same applies to the second scenario except change the 28s to 32s.

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Question

What are the odds of picking 5 numbers from 90?

Andreaslag

Community Answer

The odds of that are 1 in 43.949.268 based of the formula 90!/(5!(90-5)!). That's around 1 in 43 million!

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Question

What are the odds of picking 3 numbers from 90?

Andreaslag

Community Answer

Your odds are 1 in 117,480 for correctly guessing all 3 numbers. For 2 numbers it is 1 in 450 and for 1 number 1 in 10.

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Question

Greetings, What are the odds of picking 5 numbers from 50, 4 numbers from 50 & 3 numbers from 50?

Andreaslag

Community Answer

Your odds for correctly guessing 5 out of 5 is 1 in 2,118,760, 4 out of 5 is 1 in 9,417 and 3 out of 5 is 1 in 214.

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Question

if 250,000 tickets are in a box and only 2 tickets are taken out, what are my odds of winning?

Andreaslag

Community Answer

If there is only one winning ticket among those, then it is simple: There are 250.000 tickets and you take 2, so 250.000/2 = 125.000. Your chance is 1 in 125.000.

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