Simple Probability, Predictions, and Sample Space

Probability is ...

• the chance that some event will occur.
• a game that involves coins.
• a guarantee.

Probability can be written as ...

• a fraction
• a decimal
• a percent
• all of the above

The chart below represents the number of marbles in a jar.
P(green) = 

• 5/19
• 10/28
• 5/14

P(not A) = 
*Remember to simplify.*

• 6/8
• 3/4
• 2/8
• 1/4

The following M & M colors are in the bowl:
4 yellow, 6 orange, 3 green, 5 blue, 2 brown
What is the probability of selecting a brown candy?

• 2/18
• 1/9
• 2/20
• 1/10

Is the spinner more likely or less likely to land
on green than yellow?

• more likely
• less likely

Is it certain or impossible for the spinner to land on orange?

• imposssible
• certain

In a survey, 100 middle school students were asked which social media platform they preferred. The results are shown in the table above.

What is the probability that a student prefers TikTok?

CHECK ALL THAT APPLY

• 72 out of 100

• 72%

• 0.72

• 72/100

Twenty-five people were asked which of the four gifts was their favorite.  Which gift was favored 16% of the time?

• Flowers
• Perfume
• Jewelry
• Clothing

100 second graders were asked to do a book report about one of these four zoo animals.  The number of students who chose each animal is shown in the table.  If 250 second graders had to choose of of the four animals, predict how many would choose to write about a giraffe.

• 60 students
• 50 students
• 40 students
• 30 students