All Common Core: 7th Grade Math Resources
Example Questions
Example Question #3 : Develop A Uniform Probability Model By Assigning Equal Probability To All Outcomes: Ccss.Math.Content.7.Sp.C.7a
Samantha has a bag of marbles containing pink marbles, orange marble, red marbles, purple marbles, white marbles, black marble, green marbles, and yellow marble. What is the probability that Samantha will pick a white marble out of the bag?
In this problem we have a total of marbles. That means that each marble, regardless of color, has a chance of being picked, as shown in the images below. This image shows equal probability because each marble has a chance of being drawn, which is equal to the probability of all of the other marbles.
Samantha wants to know what her probability is of drawing a white marble out of her bag. Remember, probability is the number of favorable outcomes over the total number of outcomes:
For this problem there are white marbles; therefore,
Example Question #4 : Develop A Uniform Probability Model By Assigning Equal Probability To All Outcomes: Ccss.Math.Content.7.Sp.C.7a
Samantha has a bag of marbles containing pink marbles, orange marble, red marbles, purple marbles, white marbles, black marble, green marbles, and yellow marble. What is the probability that Samantha will pick a red marble out of the bag?
In this problem we have a total of marbles. That means that each marble, regardless of color, has a chance of being picked, as shown in the images below. This image shows equal probability because each marble has a chance of being drawn, which is equal to the probability of all of the other marbles.
Samantha wants to know what her probability is of drawing a red marble out of her bag. Remember, probability is the number of favorable outcomes over the total number of outcomes:
For this problem there are red marbles; therefore,
Example Question #8 : Develop A Uniform Probability Model By Assigning Equal Probability To All Outcomes: Ccss.Math.Content.7.Sp.C.7a
Samantha has a bag of marbles containing pink marbles, orange marble, red marbles, purple marbles, white marbles, black marble, green marbles, and yellow marble. What is the probability that Samantha will pick a purple marble out of the bag?
In this problem we have a total of marbles. That means that each marble, regardless of color, has a chance of being picked, as shown in the images below. This image shows equal probability because each marble has a chance of being drawn, which is equal to the probability of all of the other marbles.
Samantha wants to know what her probability is of drawing a pink marble out of her bag. Remember, probability is the number of favorable outcomes over the total number of outcomes:
For this problem there are purple marbles; therefore,
Example Question #9 : Develop A Uniform Probability Model By Assigning Equal Probability To All Outcomes: Ccss.Math.Content.7.Sp.C.7a
Samantha has a bag of marbles containing pink marbles, orange marble, red marbles, purple marbles, white marbles, black marble, green marbles, and yellow marble. What is the probability that Samantha will pick a black marble out of the bag?
In this problem we have a total of marbles. That means that each marble, regardless of color, has a chance of being picked, as shown in the images below. This image shows equal probability because each marble has a chance of being drawn, which is equal to the probability of all of the other marbles.
Samantha wants to know what her probability is of drawing a black marble out of her bag. Remember, probability is the number of favorable outcomes over the total number of outcomes:
For this problem there is black marble; therefore,
Example Question #11 : Develop A Uniform Probability Model By Assigning Equal Probability To All Outcomes: Ccss.Math.Content.7.Sp.C.7a
Samantha has a bag of marbles containing pink marbles, orange marble, red marbles, purple marbles, white marbles, black marble, green marbles, and yellow marble. What is the probability that Samantha will pick a green marble out of the bag?
In this problem we have a total of marbles. That means that each marble, regardless of color, has a chance of being picked, as shown in the images below. This image shows equal probability because each marble has a chance of being drawn, which is equal to the probability of all of the other marbles.
Samantha wants to know what her probability is of drawing a green marble out of her bag. Remember, probability is the number of favorable outcomes over the total number of outcomes:
For this problem there are green marbles; therefore,
Example Question #12 : Develop A Uniform Probability Model By Assigning Equal Probability To All Outcomes: Ccss.Math.Content.7.Sp.C.7a
Samantha has a bag of marbles containing pink marbles, orange marble, red marbles, purple marbles, white marbles, black marble, green marbles, and yellow marble. What is the probability that Samantha will pick a yellow marble out of the bag?
In this problem we have a total of marbles. That means that each marble, regardless of color, has a chance of being picked, as shown in the images below. This image shows equal probability because each marble has a chance of being drawn, which is equal to the probability of all of the other marbles.
Samantha wants to know what her probability is of drawing a yellow marble out of her bag. Remember, probability is the number of favorable outcomes over the total number of outcomes:
For this problem there is yellow marble; therefore,
Example Question #1 : Understand Fraction Of Outcomes: Ccss.Math.Content.7.Sp.C.8a
Joe has a bag of marbles: red marbles, , yellow marbles, and blue marbles. If the first marble he draws is a red marble, then what is the probability that he will draw a blue marble on his second try?
Joe starts out with marbles, and of the marbles are blue. This means that the probability of Joe drawing a blue marble from the bag on his first attempt is
Now that Joe has taken a red marble from the bag, we still have blue marbles left, but only a total of marbles left in the bag; thus, the probability of Joe drawing a blue marble on his second attempt is
Example Question #2 : 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 purple marble, then what is the probability that he will draw a 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 blue marble from the bag on his first attempt is
Now that Dan has taken a purple marble from the bag, we still have red marbles left, but only a total of marbles left in the bag; thus, the probability of Dan drawing a red marble on his second attempt is
Example Question #141 : Statistics & Probability
Joe has a bag of marbles: red marbles, , yellow marbles, and blue marbles. 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?
Joe starts out with marbles, and of the marbles are red. This means that the probability of Joe drawing a red marble from the bag on his first attempt is
Now that Joe has taken a red marble from the bag, we have only red marbles left, and a total of marbles left in the bag; thus, the probability of Joe drawing a red marble on his second attempt is
Example Question #142 : Statistics & Probability
Joe has a bag of marbles: red marbles, , yellow marbles, and blue marbles. If the first marble he draws is a yellow marble, then what is the probability that he will draw another yellow marble on his second try?
Joe starts out with marbles, and of the marbles are yellow. This means that the probability of Joe drawing a yellow marble from the bag on his first attempt is
Now that Joe has taken a yellow marble from the bag, we have only yellow marbles left, and a total of marbles left in the bag; thus, the probability of Joe drawing a yellow marble on his second attempt is