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, 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
Determine whether each sample is a good sample.
favorite television show at a local department store
What is a good survey
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
Determine whether each sample is a good sample.
favorite sport at a soccer game.
What is not a good survey
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
Determine whether each sample is a good sample.
favorite ice cream flavor at school
What is a good survey
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
In Silverdale, on average there are 50 days with precipitation (rain or snow) during October, November, and December. Your cousin is planning to visit for 8 days, but he only wants to come if there will likely be at least 5 days with no rain. Should your cousin visit during this 3-month period? Why or why not?
What is 2/3
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
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 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