Probability of picking balls from an urn

Thread starter gmmstr827
Start date Sep 20, 2011
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Balls Probability

In summary, an urn is a container typically used to hold objects such as balls or coins. The probability of picking a specific color ball from an urn depends on the number of balls in the urn and the number of balls of that specific color. The number of balls in the urn directly affects the probability of picking a specific ball, with a higher number of balls resulting in a lower chance of picking a specific ball. With replacement means that the ball is put back into the urn after each pick, while without replacement means that the ball is not put back. The probability of picking a certain color ball can change over time if the number of balls in the urn changes, such as if more balls of that color are added.

Sep 20, 2011

gmmstr827

Nvm, I figured it out. Thanks anyway.

Last edited: Sep 20, 2011

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Sep 21, 2011

dynamicsolo

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FAQ: Probability of picking balls from an urn

What is an urn?

An urn is a container, typically made of wood or ceramic, that is used to hold objects such as balls or coins.

What is the probability of picking a specific color ball from an urn?

The probability of picking a specific color ball from an urn depends on the number of balls in the urn and the number of balls of that specific color. It can be calculated by dividing the number of balls of that color by the total number of balls in the urn.

How does the number of balls in the urn affect the probability?

The number of balls in the urn directly affects the probability of picking a specific ball. The more balls there are in the urn, the lower the chances of picking a specific ball.

What is the difference between with replacement and without replacement when picking balls from an urn?

With replacement means that after each pick, the ball is put back into the urn, so the number of balls remains the same. Without replacement means that the ball is not put back, so the number of balls decreases with each pick.

Can the probability of picking a certain color ball change over time?

Yes, the probability of picking a certain color ball can change over time if the number of balls in the urn changes. For example, if more balls of that color are added to the urn, the probability of picking that color will increase.