Basic Probability
Jessica has 4 kittens in a box. 2 are black and 2 are white. What is the probability that she will pick a black kitten?
1/2
What is the difference between the intersection of two probabilities compared to a union?
Intersect: you multiply the probabilites.
Union: you add the probabilities.
John flipped a coin 40 times and got tails 23 times. What is the experimental probability of landing on heads?
17/40
If there were 3 hearts and 2 stars in a bag, what is the probability that you would pick a star if you picked one without looking?
2/5
The type of probability based on results.
Experimental Probability
Jacob has 7 jolly ranchers. 2 are red, 4 are green and one is pink. What is the probability that he will pick a blue one at random?
0
What's the difference between Dependent and independent Events?
Dependent: Affects the other event
Independent: Has no effect.
After doing an experiment, Seth counted that he scored 52 baskets out of 100. What is his experimental probability?
13/25
What is the probability of picking an "E" from the letters in the word "Hoop?"
0
The type of probability based on the object and what you think will happen.
Theoretical Probability
If Ms. Nystrom rolled a dice 360 times, how many times would she expect to land on 5?
60 times
A blindfolded person draws one marble from a bag that contains 3 red, 5 black, and 4 green marbles. What is the probability that they select a black or red marble?
2/3
Julie did an experiment and found that she scored over 80% on all of her quizzes so far. According to her experimental probability, will her next quiz score be above 80% or below?
above
Suh dudes
I couldn't think of another problem at 4:45 AM so I wrote this.
What is the term for all possible outcomes?
Sample Space
Kara wants to pick her crush's name out of a hat to be her lab partner. There are 30 people in her class. What is the probability that she will NOT pick his name?
29/30
A blindfolded person draws one marble from a bag that contains 3 red, 5 black, and 4 green marbles. Then selects another one without putting the first one back. What's the probaility of selecting a green then a black one?
5/36
Janele performed an experiment where she flipped a coin 25 times. 14 times she got heads. According to her experimental probability, how many heads will she get when she flips the coin 50 times?
28 heads
What is the theoretical probability of rolling a 5 or greater if you roll one die one time? Write in simplest form.
1/3
Is sub-collection of sample space the outcome or event?
Event
Maximillian Archibald wants to find the probability of picking a vowel from the letters in his name. What is the probability?
8/20
A blindfolded person draws one marble from a bag that contains 3 red, 5 black, and 4 green marbles. Then selects another one without putting the first one back. What's the probaility of selecting a green, red, red again, then a black one?
1/99
After doing an experiment, Kelsey found that her spinner with equal parts red, green, yellow, and blue, landed on green 4 out of 10 times. Is Kelsey's experimental or theoretical probability of landing on green higher?
Experimental
What is the theoretical probability of picking a letter that appears at least twice in the word:
"ifyourereadingthisyouretryingtosayitallinonebreath?"
24/25
How do you spell my last name?
JAWOROWSKI