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What is the probability of winning a reverse raffle with 200 numbers?
for each ticket, it is the same as a regular raffle: one in 200
What is the probability of rolling an even with one roll of a numbers cube. express the probability as a decimal.?
What is the probability of rolling an even with one roll of a numbers cube.
Probability of winning the lottery?
To calculate the odds of winning lotto where choose say 6 numbers out of 40 for example the calculation is 40X39X38X37X36X35 divided by 6X5X4X3X2X1 or about 3.8 million to 1 on any one line. If you have 45 numbers to choose from it would be 45X44X43X42X41X40/6X......etc or about 8.2 million to 1.
What is the probability of rolling a 4 on a die?
There are 6 possible numbers that can be rolled. "4" is one of those possible numbers. Probability is therefore 1/6.
What is the probability of winning at least once out of 100 tries if the probability to win each time is 1 percent?
About 63.3968% Right. Winning AT LEAST once out of 100 tries is equal to NOT(NEVER winning in one of 100 tries). The one in the brackets is 0.99 ^100, which is about 0.33. Taking the NOT is subtracting that result from one, yielding about 0.63396766. To get a percentage multiply this by 100.
