Probability Mr. Daniel Samuilis

The chart shows the number of times a marble was selected randomly from a bag.  What is the probability that the marble selected is NOT green or blue?

• 21/38

• 10/28

• 5/14

• 17/38

Miss Ward spins a wheel to determine the number of homework problems to assign. There are 20 sections labeled 1–20. What is the probability that there will be fewer than 13 problems assigned for homework?

• 13/20

• 3/5

• 4/9

• 7/20

A bag of markers has 4 red markers, 5 blue markers, 3 yellow markers, and 3 green markers. If Maria pulls out a marker without looking, what is the probability he will NOT pull out a blue marker?

• 5/10

• 1/3

• 4/15

• 2/3

A spinner is divided into 4 equally sized selections. The sections are blue, green, red, and yellow. The results of 1000 spins are shown in the table.

What is the experimential probability of spinning a green? (use a reduced fraction)

Mathematical Equivalence

ON

Vy is shopping for a car. It comes in red, blue, or silver. She can also choose a 2-door and 4-door version along with a manual or automatic transmission. What is the theoretical probability that Vy will pick 4-door car, automatic transmission and it being red or blue?

Mathematical Equivalence

ON

What is the experimential probability of spinning a green? (use a reduced fraction)

Mathematical Equivalence

ON

A small bag of jelly beans contains 2 lemons, 4 cherry, 1 lime, and 3 blueberry jelly beans. If Jessica chooses a jellybean without looking, what is the probability it will be cherry or blueberry?

• 3/10

• 7/10

• 1/2

• 1/4

Jose randomly selected a block like the ones shown from a bag.  What is the probability that he will choose a cube with a number less than 5?

• ⅔

• ⅙

• ⅓

• ⅚

Probability is ...

• the chance that some event will occur.

• a game that involves coins.

• a guarantee.

Which event or complement has a probability of ¼?

• P(yellow)

• P(NOT blue or orange)

• P(yellow or green)

• P(NOT green)