MMS_7Math SP7

Quiz by Jaclyn McAllister

Mathematics
North Carolina Standard Course of Study

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5 questions
• Q1
A teacher has blue and black pens. The teacher has four times the number of blue pens as black pens. If a pen is chosen at random, what is the probability that it is a black pen?
$\frac{4}{5}$
$\frac{1}{2}$
$\frac{1}{4}$
$\frac{1}{5}$
30s
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• Q2
If Mollie spins the spinner once, what is the probability she will land on "X"?
$\frac{3}{7}$
$\frac{3}{5}$
$\frac{3}{8}$
$\frac{1}{5}$
30s
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• Q3
Penny is conducting an experiment with a spinner. The spinner is divided into four equal sections: blue, green, red, and yellow. She is observing how many times the spinner lands in the yellow section. What should happen to the experimental probability of landing on the yellow section as she conducts more experiments?
The experimental probability of landing on the yellow section should go down as she conducts more experiments.
The experimental probability of landing on the yellow section should get further away from the theoretical probability of landing on the yellow section as she conducts more experiments.
The experimental probability of landing on the yellow section should get closer to the theoretical probability of landing on the yellow section as she conducts more experiments.
The experimental probability of landing on the yellow section should go up as she conducts more experiments.
30s
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• Q4
Lacrosse players receive a randomly assigned numbered jersey to wear at games. If the jerseys are numbered 0 - 29 what is the probability the first player to be assigned a jersey gets #16?
$\frac{1}{30}$
$\frac{1}{29}$
$\frac{8}{15}$
$\frac{8}{16}$
30s
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• Q5
A student rolls a six-sided die numbered 1-6 four times and gets an even number on all ​ 4 rolls. The student concludes the die is unlikely ever to land on an odd number. Which statement about the student’s conclusion is true?
The conclusion is valid because the die landed on an even number all of the times the student rolled it.
The conclusion is valid because rolling a die is a completely random event that cannot be predicted.
The conclusion is not valid because the student does not have a large enough sample size to justify the conclusion.
The conclusion is not valid because the die does not land on an even number more than expected.
30s
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