Probability

What is the probability of landing on a blue number?

• 1/3

• 4/10

• 8/4

• 1/2

If you throw a dart at the square design below, what is the probability that you hit the middle region?

• 0.75

• 0.4375

• 0.5625

• 0.28125

If you pick a point at random inside the large square, find the probability it is in the small square.

• 0

• 1/4

• 1/3

• 1/2

Find the theoretical probability of landing on orange or red if you spin the spinner.

• 0
• 3/8
• 2/8
• 1/4

Find the theoretical probability of NOT landing on yellow if you spin the spinner.

• 1/8
• 7/8
• 1
• 7

What is the probability of spinning green?

• 0
• 1/4
• 1/2
• 3/4

What is the probability of spinning an even number?

• 16 2/3%

• 33 1/3%

• 50%

• 75%

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

Find the probability that a randomly chosen point in the figure lies in the shaded region.

• 94.8%
• 80%
• 60%
• 45.6%

Answer explanation

Small Rectangle = 9*3 = 27

Large Rectangle = 15*9 = 135

Shaded region = large rectangle - small rectangle

Shaded region/ large rectangle

P(not A) = 
*Remember to simplify.*

• 6/8
• 3/4
• 2/8
• 1/4