Probability Review

A standard coin has two sides. One side is heads and one side is tails. A coin is tossed 500 times. Using the theoretical probability, how many times should the coin land on heads?

• 300
• 500
• 250
• 125

Several students conducted a simulation where a standard coin was tossed several times and the results were recorded in a table. Which table shows an experimental probability of landing on tails that is closest to the theoretical probability of landing on tails?

• Heads: 11
  Tails: 8
• Heads: 78
  Tails: 64
• Heads: 35
  Tails: 32
• Heads: 27
  Tails: 18

Billy picks one card at a time from a bag of letters and replaces it. He repeats this process 12 times and records the results in the table.Based on the table, which letter has an experimental probability of 1/3 for being drawn from the bag next?

• C
• D
• B
• A

Benny has a basket of 5 red balls, 3 yellow balls, and 2 green balls. He will pick one ball at random. What is the probability that the next ball he randomly chooses will be red or green?

• 1/5
• 1/2
• 7/10
• 3/10

The pieces of candy in Paul’s bag of candy have the following colors:
•40% red
•30% blue
•30% yellow
If Paul’s friend selected a piece of candy at random today, what is the probability that he will select a red piece of candy?

• 1/5
• 2/5
• 3/10
• 1/10

In a bag of candies there are 13 red candies, 13 green candies, 13 yellow candies, and 13 blue candies. If you choose 1 candy from the bag, what is the probability the candy will not be blue?

• 2/3
• 1/2
• 1/4
• 3/4

The spinner below is used in a game.In a single spin, what is the probability of the arrow landing on a Green or Blue space?

• 1/4
• 5/8
• 1/8
• 1/2

During a game, Linda tossed a fair coin 10 times and got 7 “tails”. Using this data,what is the experimental probability the coin will land showing tails on Linda’s next toss?

• 1/2
• 7/10
• 7/3
• 3/7

Kim is trying to guess 2 cards contained in the dealer's hand shown. Which guess has the greatest probability?

• P(8,8)
• P(3,8)
• P(5,4)
• P(2,9)

Jim and Sarah play a game at a school carnival. The object of the game is to pop a balloon by throwing a dart at the balloon. Once the balloon is popped, a number corresponding to a prize is revealed.Before each person takes their turn, the balloons and numbers are randomly replaced back onto the board. What is the probability that Jim will win a large prize and Sarah will win a small prize?

• 9/98
• 117/1250
• 9/100
• 117/225