Theoretical Probability
Experimental Probability
Likeliness
Probability Predictions
Trivia
100
A spinner is spun with numbers 1-8 on it. What is P(even)? WRITE AS A DECIMAL
P(even) = 4/8 = 1/2 = .5
100
You toss a coin 30 times and get 12 heads. What is the P(heads)?
12/30
100
What is the likeliness of rolling a die and getting a 6?
1/6 = Unlikely
100
You flip a coin. How many times would you expect to get heads in 20 tries?
10 times
100
What is the range of probability? (Smallest # to the Biggest #)
0-1
200
A six-sided die with numbers 1-6 is rolled. What is the probability of 3 or 4? WRITE AS PERCENT
P(3or4) = 2/6 = 1/3 = .3333...
200
A quality control inspector rejected 253 can openers from a batch of 19,354. What is the experimental probability that a can opener will pass inspection? WRITE AS DECIMAL
253/19354 = .013
200
What is the likeliness of spinning an odd number?
7/9 = Likely
200
You roll a six sided die. How many times would you expect to roll a 3 in 75 rolls? Round down.
12 times
200
What is the difference between Theoretical Probability and Experimental Probability?
Theo: What should happen
Exp: What actually happens or recorded.
300
A deck of playing cards has four Suits: Hearts, Spades, Clubs, and Diamonds. Each suit contains number 2-10, a jack, a queen, a king, and an Ace. What is the Probability of pulling out a card and it being a club?
P(Club) = 1/4
300
A number cube is rolled 450 times and the results recorded as follows: There were 75 ones, 80 twos, 69 threes, 78 fours, 77 fives, and 71 sixes. What is the experimental probability of rolling a two or a three?
149/450
300
What is the likeliness of spinning a # > 6?
0/9 = impossible
300
You spin a spinner that contains 13 spots. 3 "A's", 5 "B's" 2 "C's" and 3 "D's." How many times would you predict to spin an A or C in 100 tries? Round Down.
38 times
300
What label of Likeliness is 100% Probability?
Certain
400
A deck of playing cards has 52 cards.It has four Suits: Hearts, Spades, Clubs, and Diamonds. Each suit contains number 2-10, a jack, a queen, a king, and an Ace. What is the Probability of pulling out a 5 or 6?
P(5or6) = 8/52 = 2/13
400
A party store recorded recent balloon sales. Green:20 Blue:17 Pink:12 Purple:19 Orange:7
What is the experimental probability that the next balloon sold will be green?
Write your answer as a fraction or whole number.
20/75
400
What is the likeliness of spinning black?
4/8 = Equally Likely
400
You roll a 20 sided die. How many times would you expect to get an even in 350 rolls?
175 times
400
How do I change a fraction to a percent? (Hint: Two different Steps, Be specific.)
Divide Fraction into a decimal. Move decimal twice to the right.
500
A deck of playing cards has four Suits: Hearts, Spades, Clubs, and Diamonds. Each suit contains number 2-10, a jack, a queen, a king, and an Ace. What is the Probability of pulling out not a #?
P(Not #) = 16/52 = 4/13
500
During free time yesterday, 10 preschoolers chose to play with stuffed animals, and 15 preschoolers chose to do other activities. What is the experimental probability that a randomly selected preschooler would choose to play with stuffed animals today? WRITE ANSWER AS PERCENT
10/25 = 2/5 = 40%
500
What is the likeliness of spinning green or a # < 4?
7/9 = Likely
500
You roll a 20 sided die. How many times would you expect to get a factor of 20? in 350 rolls?
105 times
500
What is the #1 study tool for your test? (Mr. Stieler has said this many times.)
Mr. Stieler's Test Review!