10.1
10.2
10.3
10.6
Random
100
A group of cards is labeled A,B,C,D,E,F,G,H,I. What are the favorable outcomes for choosing a vowel?
A, E, I
100
There are 4 green, 5 blue, and 3 red hats in a bag. What is the probability of choosing not red?
3/4 = 0.75 = 75%
100
Amy flipped a coin 25 times and found that the probability of flipping heads is 0.3. Is this experimental or theoretical probability?
experimental
100
You want to find out if people at school prefer lunch study inside or outside. You survey your 5 best friends. Is this survey biased?
YES
100
On a 6-sided number cubes, how many ways can rolling a multiple of 3 occur?
2
200
There are 5 cookies on a plate:
sugar, sugar, chocolate chip, oatmeal, gingersnap
In how many ways can choosing a cookie that is not sugar occur?
3
200
What is the probability of choosing a heart or spade from a deck of cards?
1/2 = 0.5 = 50%
200
Billy flipped a coin 5 times and got these results:
H, H, T, T, H
What is the experimental probability of flipping tails?
2/5 = 0.4 = 40%
200
Which sample is better for making a prediction about the number of students who will buy a yearbook?
A - A random sample of 20 students in yearbook club.
B - A random sample of 50 students in the hallway.
B
200
On a single number cube labeled 1-6, what is the probability of rolling an odd number?
1/2 = 0.5 = 50%
300
What are the favorable outcomes for spinning not a primary color?
orange, purple, green
300
At a carnival, the probability of choosing a winning duck out of 60 ducks is 0.35. How many ducks are winning ducks?
21 ducks
300
In a bag with 8 red, 4 blue, and 6 purple bandanas, what is the probability of choosing a purple bandana?
1/3 = 0.33 = 33.3%
300
Would you survey a population or a sample if you wanted to find the average number of siblings for children in the US?
Sample. A population would be too much data to collect.
300
What is the probability of choosing a 2 in a deck of cards?
1/13 = 7.7% = 0.077
400
There are 20 coins on a table, some have heads up and some have tails up. Choosing a heads and choosing a tails have the same number of favorable outcomes. How many coins are heads up?
10
400
The probability that it will rain on any given day in April is 0.4. If there are 30 days in April, how many would you expect to be rainy?
12 days
400
Ella flipped a coin three times and got H, H, T. Using this experimental probability, how many times would you expect Ella to flip Tails in 600 trials?
200
400
You survey 85 random students at school to see if they are going to the play. 34 said yes. Predict the number of students at school if 320 students went to the play.
800
400
There are 180 students in the auditorium. The probability of choosing someone who is not in the chorus is 45%. How many students are in the chorus?
99