A bag has 12 marbles: 4 red, 4 blue, and 4 green. Which statement correctly describes the probability of picking a red marble?

It is equally likely as picking blue or green.

It is impossible because there are other colors.

It is certain because there are red marbles in the bag.

It is unlikely because there are only 4 red marbles.

A bag contains 8 orange marbles and 4 white marbles. How does the probability of picking an orange marble compare to picking a white marble?

Picking an orange marble is more likely.

Picking a white marble is more likely.

A bag has 6 red chips, 3 blue chips, and 3 yellow chips. Write the probability of picking a blue chip and describe its likelihood.

$$\frac{3}{9}$$ ; equally likely

A spinner has 12 equal sections: 4 are green, 4 are orange, and 4 are purple. A student says the probability of landing on green is $$\frac{1}{4}$$ . Is the student correct? Explain why or why not by selecting the best answer.

No, the probability is $$\frac{4}{12}$$ , which equals $$\frac{1}{3}$$ , not $$\frac{1}{4}$$ .

Yes, because there are 4 green sections.

Yes, because there are 4 colors on the spinner.

No, the probability is $$\frac{4}{8}$$ because you only count the other colors.

A bag has 24 marbles. The probability of picking a green marble is $$\frac{1}{4}$$ . A student says there must be 8 green marbles in the bag. Is the student correct? Choose the best answer.

No, because $$\frac{1}{4}$$ of 24 is 6.

Yes, because $$\frac{1}{4}$$ of 24 is 8.

Yes, because $$\frac{1}{4}$$ always means 8 out of any total.

No, because the probability should be written as a whole number.

A teacher places 16 cards in a bag: 8 are stars, 4 are circles, and 4 are triangles. A student says that picking a star is "certain." Another student says it is "likely." Which student is correct, and why?

Both students are wrong; it is equally likely.

The first student, because there are more stars than any other shape.

The second student, because the probability is $$\frac{8}{16} = \frac{1}{2}$$ , which means equally likely, not certain.

The second student, because the probability is $$\frac{8}{16}$$ , which is more than $$\frac{1}{2}$$ , making it likely.

A bag has 18 marbles: 9 red, 6 blue, and 3 yellow. A student wants to find an event that is "unlikely." Which of the following correctly identifies an unlikely event and supports it with a fraction?

Picking a yellow marble; $$\frac{3}{18}$$ because it is much less than $$\frac{1}{2}$$

Picking a red marble; $$\frac{9}{18}$$ because it is less than 1

Picking a blue marble; $$\frac{6}{18}$$ because it equals $$\frac{1}{2}$$

Picking a red marble; $$\frac{9}{18}$$ because it equals $$\frac{1}{2}$$ , making it unlikely

Understanding Probability Basics

Authored by Krissan Williams

Mathematics

4th Grade

VA covered

Used 2+ times

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MULTIPLE CHOICE QUESTION

30 sec • 1 pt

A bag contains 3 red marbles and 7 blue marbles. What is the probability of picking a red marble?

Tags

VA.4.PS.2c

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which word best describes the probability of rolling a number greater than 6 on a standard number cube (numbered 1–6)?

Likely

Unlikely

Certain

Impossible

Tags

VA.4.PS.2a

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

A spinner has 4 equal sections: 1 red, 1 blue, 1 green, and 1 yellow. What is the probability of landing on blue?

Tags

VA.4.PS.2c

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which of the following events has a probability equal to 1?

Rolling a 7 on a standard number cube

Flipping a coin and getting heads

Drawing any card from a deck of cards

The sun rising tomorrow

Tags

VA.4.PS.2d

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

A jar has 5 green candies and 5 orange candies. Which term best describes the probability of picking a green candy?

Impossible

Certain

Equally likely

Unlikely

Tags

VA.4.PS.2a

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

A bag has 2 yellow balls and 10 purple balls. What is the probability of picking a yellow ball?

Tags

VA.4.PS.2c

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

A spinner has 8 equal sections numbered 1 through 8. What is the probability of spinning an even number?

Tags

VA.4.PS.2c

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Understanding Probability Basics

A bag contains 3 red marbles and 7 blue marbles. What is the probability of picking a red marble?

Which word best describes the probability of rolling a number greater than 6 on a standard number cube (numbered 1–6)?

A spinner has 4 equal sections: 1 red, 1 blue, 1 green, and 1 yellow. What is the probability of landing on blue?

Which of the following events has a probability equal to 1?

A jar has 5 green candies and 5 orange candies. Which term best describes the probability of picking a green candy?

A bag has 2 yellow balls and 10 purple balls. What is the probability of picking a yellow ball?

A spinner has 8 equal sections numbered 1 through 8. What is the probability of spinning an even number?

A box contains 6 red tiles, 4 blue tiles, and 2 green tiles. Which term best describes the likelihood of picking a blue tile?

A number cube is labeled 1 through 6. What is the probability of rolling a number less than 3?

A bag has 12 marbles: 4 red, 4 blue, and 4 green. Which statement correctly describes the probability of picking a red marble?

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