Probability and Making Predictions

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

• 1/8

• 7/8

• 1

• 7

P(A) + P(not A) = 1

• True

• False

The likelihood that an event will NOT occur is known as its - 

• complement

• sample space

• opposite

• trial

What is the probability of spinning the spinner and having it land on RED?

• 33%

• 50%

• 12%

• 124
• 224
• 324
• 424

• 13413
• 13635
• 15265
• 14987

A spinner with the numbers 1-5 was spun 20 times. Based on the table, predict the number of times the spinner will land on the number 5 if the spinner is spun 60 times.

• A. 6 times

• B. 4 times

• C. 2 times

• D. 8 times

Theoretically, the probability of landing on an even number if the spinner is spun 40 times is ____.

• 1/2

• 1/3

• 1/4

• 1/5

Tayo flipped four coins during a probability experiment. Based on the information in the table, in how many of the next 90 trials will the outcome be two heads and two tails?

• 15

• 27

• 75

• 18

A bag contains: 5 red marbles, 6 blue marbles, 3 green marbles, 4 black marbles, and 2 yellow marbles. A marble will be drawn from the bag and replaced 100 times. What is a reasonable prediction for the number of times a green or black marble will be drawn?

Mathematical Equivalence

ON