Math Practice Topic: Object Picking Probability

Description: This topic covers probability problems.

Adaptive Learning Progression: First the items get replaced after being picked, then later the items are not replaced, which is slightly harder.

Sample Levels (out of 8)

Find the probabilites asked for. Express your answer as a fraction. A correct answer would be like '5/9'.

1.
A bag contains 5 marbles: 2 red marbles, 2 yellow marbles, and 1 blue marble. If you take one marble out, put it back, and take another marble out, what is the probability that you'll get 1 blue marble followed by 1 red marble?

Find the probabilites asked for. Express your answer as a fraction. A correct answer would be like '5/9'.

1.
A bag contains 6 jelly beans: 1 red jelly bean, 4 yellow jelly beans, and 1 blue jelly bean. If you take one jelly bean out, don't put it back, and take another jelly bean out, what is the probability that you'll get 1 yellow jelly bean followed by 1 blue jelly bean?
2.
A bag contains 6 coins: 4 pennies, 1 nickel, and 1 dime. If you take one coin out, don't put it back, and take another coin out, what is the probability that you'll get 1 penny followed by 1 dime?

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