I need the formula of how to calculate lottery probabilities and combinations i cant use calculator? - combination calculator
1.i want the rate of 6 numbers from 37 to number about 1 bonus equal to 8 digits
2.How phone numbers to 10 digits are calculated in 10 digits 0-9, without code, just the number I have all the combinations
Combination Calculator I Need The Formula Of How To Calculate Lottery Probabilities And Combinations I Cant Use Calculator?
1 comments:
1. The formula for the selection of the numbers x in a set of numbers and
YCX = Y! / (X! * (Y - x)!), In which case
37! / (6! * 31!)
The "!" Symbol means "Faculty". This means you multiply the number by all numbers less than or equal to the number.
For example, 6! = 6 * 5 * 4 * 3 * 2 * 1
It is not easy without a calculator, but you can always certain conditions. Reduces immediately to:
(37 * 36 * 35 * 34 * 33 * 32) / (6 * 5 * 4 * 3 * 2)
You may terminate the terms a little more to make it even easier.
Once you do, you multiply by 8 for the number of ways.
2. As you can repeat the numbers, the answer is 10 ^ 10, which is ten million. Not all valid telephone numbers, but because they include things like 000-000-0000.
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