Simple Probability
What is the probability of flipping a coin and getting heads? Write your answer as a fraction.
1/2
If you flip two coins, what is the probability both will land on heads? Write your answer as a decimal.
0.25
Write as a decimal.
40/80
0.5
How many outcomes are there if you flip two coins?
4
In a survey, 30 out of 50 students prefer pizza. What percent is this?
60%
A bag contains 4 red marbles and 6 blue marbles. What is the probability of randomly selecting a green marble?
0
You roll two six-sided dice. What is the probability that both dice show a 1? Write your answer as a fraction.
1/36
Write 40% as a fraction.
40/100 or 4/10 or 2/5
If you roll a 6-sided die and flip a coin, how many possible outcomes are there?
12
If you get 18 out of 24 questions correct, what percent did you answer correctly?
75%
A deck has 8 cards numbered 1 through 8. What is the probability of drawing an even number? Write your answer as a percentage.
50%
If you flip a coin and roll a die, what is the probability of getting tails and rolling a 3?
1/12
Write 73% as a decimal.
0.73
FREEE SPACE
WOOP WOOP
A relative frequency table shows that 8% of a population of fish have spotted scales. If there are 300 fish, about how many will have spotted scales?
24
A spinner is divided into 5 equal sections labeled A, B, C, D, and E. What is the probability of NOT landing on C?
4/5
A bag has 3 green and 2 yellow candies. What is the probability of picking a green, replacing it, then picking a yellow?
6/25
Write as a percent.
3/5
60%
How many outcomes are there if you choose one of 4 shirts and one of 3 pairs of pants?
12
A relative frequency table shows that 45% of 8th graders skip breakfast. If there are 676 8th graders, about how many of them skip breakfast? Round to the nearest whole number.
304
A letter of the alphabet is picked at random. What is the probability of it being a vowel (AEIOU) or in the first 10 letters of the alphabet?
12/26 or 46%
You have 4 red and 3 blue balls. If you pick two without replacement, what is the probability both are red? Write your answer as a reduced fraction.
2/7
Write as a percent. Round to the nearest tenth.
6/7
86%
A restaurant lets you choose between the following options:
Meat - chicken, beef, pork
Veggies - lettuce, cucumber, bell peppers
Topping - spicy mayo, artichoke aioli, ketchup, and mustard.
How many total meals can you make?
36
A pro basketball player makes 6 out of 10 shots. If he plays 25 games a year, shooting 20 times per game, about how many shots will he make?
300 shots