Theoretical Probability
Outcomes
Likelihood
Experimental Probability
Probability of Independent Events
100
A number cube is rolled. Find the probability of rolling a 5.
Write your answer as a fraction, a decimal and a percent.
1/6, 0.167, 16.7%
100
How many outfits are possible from a choice of jeans or khaki shorts and a choice of a yellow, white, or blue shirt?
Use a tree diagram.
6 possible outcomes
100
Make is the likelihood that a month chosen at random ends with the letter Y?
Unlikely
100
Out of the past 65 school days, Logan has bought school lunch 5 times. What is the experimental probability that Logan will buy school lunch tomorrow?
1/13
100
The spinner below is spun and a number cube is rolled. Find the probability of spinning blue and rolling a 2.
1/30
200
A marble is drawn from a bag. The bag contains 3 blue marbles, 5 white marbles, and 1 green marble. Find the probability of drawing a black marble.
0
200
What are the possible outcomes if you choose a slice of pie and a beverage from these options:
Pie: apple, peach or cherry
Beverage: milk, juice or tea
9 outcomes
200
What is the likelihood of randomly bumping into a boy in the hallway? Assume there are roughly the same number of boys as girls in the school.
Equally Likely
200
Xaylie has worn her hair in a pony tail 15 times over the past 50 days. What is the experimental probability that Xaylie will wear her hair in a pony tail tomorrow?
3/10
200
The spinner below is spun and a number cube is rolled. Find the probability of spinning blue and rolling a 2 or 4.
2/30 or 1/15
300
A spinner is divided into 8 equal sections. Each section is labeled 1 through 8. Find the probability of rolling a 4 or 6.
Write your answer as a fraction, a decimal, and a percent.
1/4, .25, 25%
300
You roll a die twice. How many possible outcomes are there?
36 possible outcomes
300
In a bag, there are 5 red marbles, 4 green marbles, and 8 yellow marbles. What is the likelihood of pulling a blue marble?
Impossible
300
Josh has been late to his piano lesson 6 times over the last 18 lessons. What is the experimental probability that Josh will be ON TIME for his next lesson?
2/3
300
The spinner below is spun and a number cube is rolled. Find the probability of spinning blue and rolling an odd.
3/30 or 1/10
400
A number cube is rolled. Find the probability of NOT rolling a 3 or 4.
Write your answer as a fraction, a decimal, and a percent.
2/3, 0.666, 66.6%
400
A coin is tossed three times. How many outcomes are possible?
8 possible outcomes
400
A piece of paper with each day of the week written on it is placed into a hat. What is the likelihood of randomly pulling a day that has an "A" in it?
Certain
400
When Mrs. Forbes draws Ridgetop Rocks tickets, she records which grade level they come from. Here is the latest data:
6th grade - 15
7th grade - 11
8th grade - 7
What is the experimental probability that the next Ridgetop Rocks ticket that is drawn will be from the 7th grade?
1/3
400
The spinner below is spun and a number cube is rolled. Find the probability of spinning green and rolling a prime number.
4/30 or 1/15
500
A number cube is rolled and a coin is tossed. Find the probability of rolling a multiple of 2 and getting heads.
Write your answer as a fraction, a decimal and a percent.
1/4, 0.25, 25%
500
Mr. Todd's preschool class has 6 students. He needs to assign them places to stand in line. How many ways can the students be arranged?
720 ways
500
What is the likelihood that a random day on summer has a daily high temperature above 50 degrees?
Likely
500
Cooper rolls a die 80 times. Here are the results:
#1 - 12 times
#2 - 15 times
#3 - 13 times
#4 - 11 times
#5 - 14 times
#6 - 15 times
What is the experimental probability of rolling a 5? How is that different from the theoretical probability of rolling a 5?
The experimental probability is 7/40 or 17.5%. The theoretical probability is 1/6 or 16.7%. The experimental probability was 0.8% higher than the theoretical probability.
500
The spinner below is spun twice. Find the probability of spinning blue and then green.
1/25