ATLAS Probability Practice

Which value represents the probability of a likely event?

• 0.00

• 0.25

• 0.50

• 0.75

Richard has a set of colored pens. 5 pens are red, 3 pens are green, 2 pens are purple. Richard grabs a pen without looking. What is the probability that he will grab a purple pen?

• 0

• 1

• 0.2

• 0.5

A spinner has 3 sections. red, blue, and green. Each section has a random probability that a spin will land in that section. If landing on red has a probability of 0.5, and landing on blue is 0.2, what would be the probability of landing on green?

• 1

• 0

• 0.3

• 0.8

What is the probability of an event that cannot happen?

Select all the probabilities that indicate unlikely events.

• 0.15

• 0.30

• 0.45

• 0.60

Nathan has a box that contains marbles of 5 different colors. The colors are red, blue, yellow, green, and orange. There are equal numbers of marbles of each color. Nathan randomly draws one marble from the box. What is the probability Nathan will draw a red marble?

• 0

• 1

• 0.2

• 5

Nathan has a box that contains marbles of 5 different colors. The colors are red, blue, yellow, green, and orange. There are equal numbers of marbles of each color. Nathan randomly draws one marble from the box.

What is the probability Nathan will draw a blue, red, yellow, green, or orange marble?

• 0

• 1

• 0.2

• 5

Nathan has a box that contains marbles of 5 different colors. The colors are red, blue, yellow, green, and orange. There are equal numbers of marbles of each color. Nathan randomly draws one marble from the box.

What is the probability Nathan will draw a purple marble?

• 0

• 1

• 0.2

• 5

Esme rolls a number cube. The roll has an equal chance of landing on 1,2,3,4,5, or 6.

What is the probability of rolling a number greater than 0?

• 0

• 1

• 0.5

• 3

• 6

Esme rolls a number cube. The roll has an equal chance of landing on 1,2,3,4,5, or 6.

What is the probability of rolling a number greater than 3?

• 0

• 1

• 0.5

• 3

• 6