Basic Probability
Multiplication Rule
Addition Rule
Conditional Probability
Mystery Mixup!
100
If you own 4 dogs and 3 cats, what is the probability of randomly selecting a pet and choosing a velociraptor?
Zero!
100
On a 6-sided die, what is the probability of rolling a "3" in back-to-back rolls?
1/36
100
The dice below is 10 sided. What is the probability of randomly rolling a 4 or a 7?
1/5
100
A bag of candy has 20 MnMs, 20 skittles, and 20 jolly ranchers.
What is the probability of randomly selecting a skittles, given that all of the jolly ranchers were already eaten?
1/2
100
How old was the oldest human of all time?
(closest guess wins!)
116 years old
200
If you own 4 dogs and 3 cats, what is the probability of randomly selecting a pet and choosing a Cat?
3/7
200
From the selection of marbles below, what is the probability of selecting a red marble, replacing it back in the back, then selecting a blue marble
5/36
200
If a bird sanctuary has 10 Tucans, 14 flamingos, and 6 eagles, what is the probability of choosing a Tucan or a Flamingo?
4/5
200
A book club has 20 members reading a fantasy book, and 30 members reading a sci-fi book.
What is the probability of a member reading the sci-fi book, given that 8 of the fantasy book readers switched over to the sci-fi book?
19/25
200
What is Scotland's national animal?
(Hint, it's a mystical animal!)
Unicorn
300
What is the probability of randomly spinning a blue result?
3/8
300
From the selection of marbles below, what is the probability of selecting a red marble, tossing it at a friend, and then selecting another red marble?
5/33
300
On a 10 sided die, what is the probability of rolling a 7, or a multiple of 3?
2/5
300
Given the data presented below, what is the probability of a random individual being a full time student, given that they visited tutoring two to three times?
5/12
300
How much does the average cloud weigh?
Closest guess wins!
A million tons
400
What is the probability of randomly spinning a multiple of 3?
1/4
400
In a class of 10 sophomores and 6 juniors, what is the probability of randomly picking two different kids, and getting two juniors in a row?
3/24
400
A donut randomly chosen from a box of 12 donuts has a 2/3 chance of being chocolate or strawberry.
If the only other flavor is pumpkin, how many pumpkin donuts are there?
4
400
Determine the probability of a randomly selected individual going to tutoring one or fewer times, given that they are a part time student?
2/13
400
How many buildings have hosted an Allegro class since Allegro was founded?
NOTE: THIS INCLUDES "Side" BUILDINGS LIKE THE TRAILERS!
7
500
If a huge house has 16 total rooms, with 4 being bathrooms and 6 being bedrooms, what is the probability of choosing a room that's neither a bedroom or a bathroom?
3/8
500
From THIS ROOM OF STUDENTS, what is the probability of randomly selecting a group of 3 kids, and all three being girls?
Let's check it!
500
A study hall has 30 students from all high school grade levels. If the probability of selecting a sophomore is 1/3, and the probability of selecting a junior is 1/5, what is the probability of selecting a Sophomore OR a Junior?
8/15
500
Your company wants you to check two boxes of product to determine whether or not there are too many broken items. What is the probability that an item is partially defective OR acceptable, given that it's from box 2?
62/65
500
A lightning bolt is hotter than the surface of the sun. How many times hotter?
Five times hotter.