Probability (Choose) question

Oct 29, 2008

glog

Probability (Choose) question -- marbles in a jar

Simple high school question which i really forgot how to solve :(

"a bowl of 50 marbles, three are blue and the rest are white, if you pick 16 marbles what's the chance you'll get at least one blue one?"

any help would be appreciated!

-glog-

Oct 29, 2008

Office_Shredder

Staff Emeritus

Science Advisor

Gold Member

Find the probability of getting no blue marbles

1. How do you calculate the probability of choosing a specific color marble from a jar?

The probability of choosing a specific color marble from a jar can be calculated by dividing the number of marbles of that color by the total number of marbles in the jar. For example, if there are 10 red marbles and 30 total marbles in the jar, the probability of choosing a red marble would be 10/30 or 1/3.

2. What is the difference between theoretical and experimental probability?

Theoretical probability is the chance of an event occurring based on mathematical calculations and assumptions. Experimental probability is the chance of an event occurring based on actual trials or experiments. Theoretical probability is based on theoretical models while experimental probability is based on real-world data.

3. How does the number of marbles in a jar affect the probability of choosing a certain color?

The number of marbles in a jar does not affect the probability of choosing a certain color. As long as the number of marbles of each color remains the same, the probability will remain the same. However, if the number of marbles of a certain color changes, the probability of choosing that color will also change.

4. Can the probability of choosing a specific color marble change if marbles are removed from the jar?

Yes, the probability of choosing a specific color marble can change if marbles are removed from the jar. As the number of marbles decreases, the probability of choosing a specific color increases. This is because there are fewer marbles to choose from, making it more likely to select a specific color.

5. How can we use probability to make predictions about future events?

Probability can be used to make predictions about future events by calculating the likelihood of an event occurring. By using theoretical or experimental probability, we can estimate the chances of a certain outcome happening and make informed decisions based on these predictions.