Simple Stuff
What is the probability, as a fraction, of flipping a coin and getting tails?
1 / 2
Dave has a 1 / 2 chance of flipping a coin in getting heads. How many times should he get heads when flipping a coin 50 times?
25
What is the probability of rolling a 2 or 3 on a fair number cube?
2 / 6
You a spin a spinner labeled 1-7 twice. What is the probability of getting a 3, then an odd number.
4 / 49
What is the sample space of a coin being flipped once?
S = {H, T}
What is the probability, as a fraction, of rolling a 5 on a fair number cube?
1 / 6
Jamie has a 3 / 10 chance of getting purple when spinning a spinner. How many times should he land on purple when he spins in 100 times?
30
What is the probability of rolling an even or a 5 on a fair number cube?
4 / 6
You roll a fair number die 2 times. What is the probability of getting a prime, then a number 1-2?
6 / 36
What is the sample space of a deck of cards labeled 1-8 being drawn from once?
S = {1, 2, 3, 4, 5, 6, 7, 8}
What is the probability, as a fraction, of rolling a 2 through 5 on a fair number cube?
4 / 6
John has a 6/7 chance of getting a red marble from a bag of marbles. How red marbles should he get if he repeats the experiment 63 times?
54
What is the probability of rolling a prime or an even on a fair number cube?
5 / 6
You roll a fair number cube twice. What is P(even, odd)?
9 / 36
What is the sample space of a fair number cube being rolled once?
S = {1, 2, 3, 4, 5, 6}
What is the probability, as a fraction, of spinning a prime on a spinner labeled 1-10?
4 / 10
Derek has a 4/5 chance of getting a prime number when spinning a spinner. How many times should he get a prime number when spinning it 450 times?
360
What is the P(1-2 or 5) on a fair number cube?
3 / 6
You pick a card out of a deck labeled 1-11 twice with replacement. What is P(even, prime)?
25 / 121
What is the sample space of a coin being flipped 2 times?
S = {(H,T) (T,H) (T,T) (H,H)}
What is the probability, as a fraction, of picking a multiple of 3 from a deck of cards labeled 1-15?
5 / 15
Hunter has a 1/6 chance of rolling a 4 on a fair number die. How many 4's should he land on if he rolls the die 660 times?
110
What is P(Heads or tails) on a fair coin?
2 / 2, or 1
You spin a spinner with 4 sections labeled red, blue, green, yellow. What is the P(brown, yellow)?
0
What is the sample space of spinner a spinner with 2 sections labeled R and G twice?
S = {(R,R) (G,G) (R,G) (G,R)}