Are correct probability calculation?

Reply #7

SergeM — Tue, 25 Mar 2014 17:04:32 GMT

I thought you might figure that one out on your own.

Reply #6

febausa — Sun, 16 Mar 2014 22:45:15 GMT

Very good answer, thank you

Reply #5

SergeM — Fri, 14 Mar 2014 23:03:04 GMT

5/5 from 75 numbers : 1 time

4/5 ...

Reply #4

febausa — Fri, 14 Mar 2014 23:01:13 GMT

Please explain more your comment. I don't understand.

Reply #3

SergeM — Fri, 14 Mar 2014 01:25:05 GMT

5 1

4 350

3 24150

2 547400

1 4584475

0 12103014

Reply #2

LottoMetro — Thu, 13 Mar 2014 21:21:31 GMT

By the way, a shortcut to bypass the probability conversion would be:

= 75*74*73*72*71 / 5!

That gives you #4, then just multiply by 15 to get #5, which you can divide into 1 to get the actual probability. Even easier would be to use Excel's COMBIN function or TI-84 calculator nCr function to get n choose k, where n = 75 and k = 5. Then do step #5 as prescribed.

Reply #1

LottoMetro — Thu, 13 Mar 2014 20:55:20 GMT

1) Close, but you don't add. You multiply and get probability = 4.82829E-10

2) Divide 1/probability found in #1 = 2,071,126,800

3) Find 5! (factorial 5, or 5*4*3*2*1) since you can choose the 5 numbers in any order = 120

4) Divide #2 by #3 = 17,259,390

5) For MM, multiply #4 by 15 since there are 15 different Mega balls = 258,890,850

Those are the odds. You can divide 1 by 258,890,850 to get the probability in decimal form. Note that if you compare #4 to the odds for 2nd prize in... [ More ]

Are correct probability calculation?

febausa — Thu, 13 Mar 2014 20:35:56 GMT

Are correct this calculation? , Please recommend it correct calculation

Regular ball a total of 75 numbers

The probability of select the first number in the Mega million = 1/75

The probability of select the second number in the Mega million = 1/74

The probability of select the third number in the Mega million = 1/73

The probability of select the fourth number in the Mega million = 1/72

The probability of select the fifth number in the Mega million = 1/71

The selected numb... [ More ]