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Math Problems
Grade 7
Probability of independent and dependent events
1
1
1
. A bag contains
5
5
5
red,
3
3
3
green,
4
4
4
blue, and
8
8
8
yellow marbles. Find the probability of randomly selecting a green marble, and then a yellow marble if the first marble is replaced.
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You pick a card at random, put it back, and then pick another card at random.
6
6
6
7
7
7
8
8
8
What is the probability of picking a
6
6
6
and then picking a
6
6
6
? Write your answer as a fraction or whole number.
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You roll a
6
6
6
-sided die two times. What is the probability of rolling a
6
6
6
and then rolling a
6
6
6
? Write your answer as a fraction or whole number.
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You pick a card at random. Without putting the first card back, you pick a second card at random.
3
3
3
4
4
4
5
5
5
6
6
6
7
7
7
8
8
8
9
9
9
What is the probability of picking a
5
5
5
and then picking an even number? Write your answer as a fraction or whole number.
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