Probability

Probability is defined as...

• ...the likelihood that an event will occur.

• ...a game that involves coins.

• ...a guarantee.

A poll asked 25 people which gift was their favorite.

The gift of _____ had a probability of 4/25 of being picked.

• Flowers
• Perfume
• Jewelry
• Clothes

Find P(red marble)...

• 3/10
• 3/9
• 1/9
• 1/3

The spinner is spun 20 times. Predict how many times the spinner should land on blue.

• 0 times

• 5 times

• 10 times

• 20 times

A jar contains 2 pink, 6 red, and 4 blue marbles. If you pick one marble without looking, what is the probability that the marble you pick will be red or blue?

• 5/6
• 1/2
• 1/3
• 1/6

You flip a coin 20 times and record the results. Is this experimental or theoretical probability?

• Experimental
• Theoretical

In a bag with 36 skittles, 12 are red, 9 are green, 3 are purple, 5 are orange, and 7 are yellow. What is the probability of pulling out a red skittle OR an orange skittle?

When adding fractions, they must have a common _____

• denominator

• numerator

• brother

• math class

• 12

• 17

• 24

• 60