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What do you mean? LIke for example, if you have a bag with the follow:

888887777775 The probability would be 11/12

666778999999 The probability would be 1/4 (3/12)

You take the number in total and that is your denominator(Number on bottom)

You take the total number of sevens and eights and that is you numerator(Number on top)

Than reduce as needed.

Q: What is the probability of picking a seven or an eight?

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It is 1/13.

4/7

The probability of getting exactly seven tails if you flip a coin eight times is: P(7T1H) = 8∙(1/2)8 =0.03125 ≈ 3.1%

The probability is 11/21.

50%

Related questions

It is 1/13.

There are four 7s in a deck of 52 cards. Therefore probability of picking a 7 is 4/52 or 1/13 or 0.0769.

4/7

Of course. If there are seven pennies and thirteen dimes in a bowl, and you pick up one coin with your eyes closed, the probability of picking up a penny is 35%.

The probability of getting exactly seven tails if you flip a coin eight times is: P(7T1H) = 8∙(1/2)8 =0.03125 ≈ 3.1%

The probability of picking a distinct set of 3 numbers from 20 is1/[20!/(3!)(17!)]= 1/1140The probability of only picking 3 from 20 is1/20

The probability is 1/b.

The probability is 0.25

The probability is 11/21.

50%

The probability of picking a black ace in one random draw from a normal pack of playing cards is 1/26.

The answer depends on whether the first number is replaced before picking the second. If not, the probability is 0.029