All Common Core: 7th Grade Math Resources
Example Questions
Example Question #11 : Understand Fraction Of Outcomes: Ccss.Math.Content.7.Sp.C.8a
Dan has a bag of marbles: red marbles, , yellow marbles, and blue marbles, purple marble, and orange. If the first marble he draws is a blue marble, then what is the probability that he will draw another blue marble on his second try?
Dan starts out with marbles, and of the marbles are blue. This means that the probability of Dan drawing a blue marble from the bag on his first attempt is
Now that Dan has taken a blue marble from the bag, we have blue marbles left, and a total of marbles left in the bag; thus, the probability of Dan drawing a blue marble on his second attempt is
Example Question #12 : Understand Fraction Of Outcomes: Ccss.Math.Content.7.Sp.C.8a
Dan has a bag of marbles: red marbles, , yellow marbles, and blue marbles, purple marble, and orange. If the first marble he draws is a red marble, then what is the probability that he will draw another red marble on his second try?
Dan starts out with marbles, and of the marbles are red. This means that the probability of Dan drawing a red marble from the bag on his first attempt is
Now that Dan has taken a red marble from the bag, we have red marbles left, and a total of marbles left in the bag; thus, the probability of Dan drawing a red marble on his second attempt is