Theoretical Probability
You spin a spinner numbered 1 though 10. Find P(9).
1/10
The following are the results of tossing a coin 4 times: T, T, H, T.
What is the experimental probability for tails?
3/4
If somebody were to roll a 6-sided die, what are the ODDS of an outcome being a three?
1:5
If there are 3 girls in our class of 9 students, what percentage are female?
33%
What is the complement of 2/9?
7/9
You roll a die. Find the P(5)
1/6
You survey 15 classmates about their favorite pet. 6 said dog, 4 said cat, 3 said fish and 2 said snake. What is the experimental probability for snake in percent form? Round to whole percent.
13%
If a 6-sided die is rolled, what are the ODDS of rolling an even number?
1:1
There are currently 268 upper school students enrolled at RHP & Ren. If 35% of the student population are enrolled in Renaissance, how many upper school Ren students are there? (round to the nearest whole number)
94
You select a letter randomly from a bag containing the letters S, P, I, N, N, E, R. Find the odds in favor of selecting an S.
1:6
You roll a 6-sided die. Find the P(odd). (Make sure to simplify if possible)
1/2
You observe the color of shirts worn by your classmates: 11 have on white, 5 have on blue, 4 have on grey. What is the experimental probability for blue?
1/4
If there is a 60% chance of rain, what are the ODDS that it won't rain?
2:3
If 23% of the students at RHP/Ren (268) are traveling for the holidays, how many students are traveling?
(Round to the nearest whole number)
59 students
A bag contains 4 red marbles, 6 blue marbles and 10 yellow marbles. Find the P(not blue) as a fraction and as a percent.
7/10 = 70%
You toss a coin, and flip 7 tails in a row! What is the theoretical probability of flipping a 'heads' on the next toss?
1/2
A quality control inspector found flaws in 13 out of 150 sweatshirts on Tuesday. Suppose on Wednesday he inspects 500 sweatshirts. How many will have flaws?
43
Mr. Blanchette has 4 different ties: a blue tie, a red tie, a black checkered tie, and a green-striped tie. What are the ODDS that if he picks a random tie to wear, it will match (same color) with his blue suit jacket?
1:3
Out of 150 people surveyed about using electronic scooters, 56% said they ride "Bird," 20% said they use "Lime," and 24% said they use "Razor," how many more people use "Bird" than "Razor" e-scooters?
48 more people
If a letter was chosen at random from the word MISSISSIPPI, what is the probability and odds of selecting the letter S?
probability= 4/11
odds= 4:7
You spin a spinner numbered 1 through 20. Find the P(25).
0
The probability of a person being left-handed is about 11%. Suppose you interview 1000 people. About how many would you expect to be left-handed?
About 110
If a card is randomly selected from a deck, what are the ODDS that a face card will be chosen?
3:10
The current US population is 327,766,448. If 12% of the country's population resides in California, how many people live in the state?
39.3 million
A student in Mr. Blanchette's class exclaimed, "I'm so stressed! I'm going to fail the final!"
... If that student has scored an A, B, or C on each of his or her tests & quizzes, what is the probability that he or she will fail the final exam?
0%