Theoretical Probability
Outcomes
Making Predicitions
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
1/6
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
If you roll a number cube 12 times, predict how many times you will roll a 5
2 times
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
Predict home many outcomes will you have?
Three shirts: BLUE, RED, and GREEN
three bottoms: pants, skirts, and shorts
SHOES: brown and black
18 outcomes
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 decimal
.25
300
You roll a die twice. How many possible outcomes are there?
36 possible outcomes
300
There is a spinner with 6 sections: colors RED, BLUE GREEN, PURPLE, YELLOW, and BROWN
What is the prediction if you spin the spinner 36 times?What is the probability it will be RED?
6 times
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 percent rounded to the nearest tenth.
66.7%
400
A coin is tossed three times. How many outcomes are possible?
8 possible outcomes
400
It has rained in 12 of 30 days in May on average over the last few years. If it rained in April and June at the same rate how many days could you expect it to rain in April through June?
What is 36?
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.
3/30 or 1/10
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
1/4
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
In basketball, Daniel, made 12 of his last 18 shots. Suppose Daniel takes 30 shots during his next game. About how many of the shots will he make?
What is 20.
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 difference between the experimental and the theoretical probability of rolling a 5 written as a percentage rounded to the nearest tenth?
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