Name: _______________________________________ Period: _____ Date: _______
Lesson 1 - Simple Probability HW
1. The spinner on the right is spun one. Find the probability of each event.
a. P (Blue)!
!
b. P (Red or Green)!
!
c. P (Not Yellow)
2. A bag contains 6 red, 4 blue, and 8 green marbles. How many marbles of each color
should be added so that the total number of marbles is 27, but the probability of
randomly selecting one marble of each color remains unchanged? State the
probability of each marble before and after adding additional marbles.
!
BEFORE!
!
AFTER!
!
!
Red: ________!
________
!
Blue: ________!
________
!
Green: _______!
________
Lesson 2: Theoretical and Experimental Probability HW
1. The graph shows the results of an experiment in which a spinner with 3 equal
sections is spun 60 times.
a. Find the experimental probability of
spinning red for this experiment.
b. Compare that to the experimental
theoretical probability.
c. If the spinner was spun 3 more times
and landed on green each time, find
the experimental probability of spinning
green after the additional spins.