WorksheetsSimple Probability and Odds
Total questions: 20
Worksheet time: 35mins
P(green) =
The mathematical calculation that an event will happen in theory.
Simple Event
Simulation
Theoretical Probability
Tree Diagram
5 green
6 yellow
8 blue
7 brown
Larissa is planning on doing a magic trick for her friend Tom. She holds these playing cards in her hand. If Tom draws a card at random, what is the probability that he will draw a heart?
4 out of 10
4 out of 9
3 out of 9
3 out of 10
Cleo is making a model of the 9 planets in the solar system, and she needs Mars and Pluto. The clerk at the hobby shop draws a planet at random from a bin that has one of each planet in the solar system. What is the probability that he will NOT draw one of the two planets Cleo needs?
1/9
2/9
2/3
7/9
Marcus spins a spinner like the one pictured above. What are the odds against the spinner landing on a vowel?
1 to 4
1 to 3
3 to 1
4 to 1
Jade put 3 green tiles, 7 red tiles, and 11 orange tiles in a box. If she closes her eyes and picks a tile, what is the probability that the tile will NOT be green?
1/7
1/3
11/21
6/7
Bill reaches into a bag filled with colored tiles and chooses 1 tile. The bag has 5 blue tiles, 4 green tiles, 3 yellow tiles, and 8 red tiles. What is the probability that Bill will choose a tile that is NOT green?
1/5
1/4
3/4
4/5
Preston placed 4 white marbles, 6 blue marbles, and 8 yellow marbles in a bag. If he picks a marble without looking, what is the probability that the marble will NOT be blue?
1/3
4/9
2/3
7/9
