Probability Concept Check

Jonah is conducting an experiment by spinning a spinner 50 times. It lands on green 13 times, blue 5 times, red 17 times, and yellow 15 times. What is the probability that it will land on blue?

• 13/50

• 17/50

• 1/10

• 3/10

A spinner is divided into 6 equal pieces. 1 piece has a smiley face on it. If the spinner is spun 24 times, how many times would you expect to land on the smiley face?

• 1

• 4

• 6

• 24

Mr. Tanner’s science class is running the “Magnificent Marbles” booth in the corner of the gym. Most students who play this game are hoping to draw a yellow marble to win the most popular prize, a razorback stuffed toy. Each beige canvas bag contains three yellow marbles, five blue marbles, and eight red marbles. What is p(~yellow)?

• 3/16

• 13/16

• 5/16

• 8/16

Does each number on a die (6-sided number cube) have an equally likely chance of being landed on?

• yes

• no

• depends who's rolling it

• not enough information

Probability is ...

• the chance that some event will occur.

• a game that involves coins.

• a guarantee.

• a game that involves spinners

Finding the probability of an event by conducting trials and collecting data

• experimental probability

• theoretical probability

• complement

• sample space

Finding the probability by analyzing all the possible outcomes

• experimental probability

• theoretical probability

• complement

• sample space