Unit 8: Probability Review

Quiz by Alyssa Hancock

Mathematics
Texas Essential Knowledge and Skills (TEKS)

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### Measures 6 skills fromGrade 7MathematicsTexas Essential Knowledge and Skills (TEKS)

7.6.A: Proportionality
7.4.D: Proportionality
7.6.I: Proportionality
7.6.C: Proportionality
7.6.D: Proportionality
7.6.E: Proportionality

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10 questions
• Q1
Ms. Miles is bringing snacks for her math classes. She is bringing candy bars, chips, and a drink for the students. The students can choose between a Snickers or Milky Way; chip choices are Pringles, Fritos, or Cheetos; and drink choices are soda or juice. How many different possible combinations of snacks do the students get to choose from?
7
12
36
300s
7.6.A: Proportionality
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• Q2
In health class, the students were asked what type of bread they prefer. The results are shown in the table. What is the probability that a randomly chosen student in the health class listed multi-grain as their favorite bread?
20%
28%
30%
25%
300s
7.4.D: Proportionality
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• Q3
Which is NOT an outcome if you toss a number cube labeled 1 to 6 and flip a coin?
7, tails
4, tails
300s
7.6.A: Proportionality
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• Q4
Mr. Garcia’s prize box contains 5 red pens, 7 pencils, and 8 gel pens. If you get to reach into the box twice, what is the probability that you will get a red pen on your 1st and 2nd grab? Of course, you won’t put your first prize back into the box!
1/19
20/400
1/20
25/400
300s
7.6.I: Proportionality
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• Q5
Steven surveyed 40 students on their favorite soft drink. 15 students liked Dr. Pepper, 5 liked Coke, 12 liked Pepsi and 8 liked Root Beer. What is the experimental probability that the next person Steven asks likes Dr Pepper.
1/8
3/8
1/2
1/5
300s
7.6.C: Proportionality
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• Q6
The tree diagram below shows the possible outcomes for Lindsey choosing an outfit of 1 shirt, 1 skirt, and 1 pair of shoes. What is the probability that Lindsey randomly chooses a green shirt, khaki skirt, and brown shoes?
1/6
1/12
1/3
1/11
300s
7.6.A: Proportionality
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• Q7
Using the spinner, what is the probability of getting a 3 or a 5?
8/8
1/4
3/8
5/8
300s
7.6.D: Proportionality
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• Q8
A group of cards that spell B A S K E T B A L L are placed in an envelope. You choose one card without looking. What is the probability of NOT getting a vowel. Vowels are A, E, I, O, U.
3/10
1
7/10
0
300s
7.6.E: Proportionality
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• Q9
Steven surveyed 40 students on their favorite soft drink. 15 students liked Dr. Pepper, 5 liked Coke, 12 liked Pepsi and 8 liked Root Beer. Using this information, if Steven surveyed 120 students, how many people should he expect to like Pepsi?
4
92
15
36
300s
7.6.D: Proportionality
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• Q10
If you roll a 1-6 number cube and flip a coin at the same time, what is the probability of landing on 4 and heads? Write as a fraction in simplest form
4/12
2/12
1/12
1/2
300s
7.6.I: Proportionality
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