Khan Academy | Simple probability
You spin the spinner shown below once. The spinner has 4 equal sectors colored pink, purple, blue, and green. What is P (GREEN)? If necessary, round your answer to 2 decimal places.
0.25
You spin the spinner shown below once. Each sector shown has an equal area. What is P (shaded sector)? If necessary, round your answer to 2 decimal places. ( 2 SHADED on the spinner, and 3 NOT SHADED)
0.4
You spin the spinner shown below once. Each sector shown has an equal area. What is P (beaver)? If necessary, round your answer to 2 decimal places.
0.8
Bruce is going to call one person from his contacts at random. He has 25 total contacts. 20 of those contacts are from his neighborhood. What is P (call a person not from his neighborhood)? If necessary, round your answer to 2 decimal places.
Answer 0.2
Dhruv is at a car dealership. He is going to randomly select a vehicle to test drive. There are 13 trucks, 8 vans, and 4 compact cars. What is P (compact car)? If necessary, round your answer to 2 decimal places.
Answer: 0.16
Leslie is a biologist. She is going to randomly select one animal from her lab to study. There are 5 salamanders, 3 crayfish, and 12 minnows in her lab. What is P (salamander)? If necessary, round your answer to 2 decimal places.
Answer: 0.25
You spin the spinner shown below once. The spinner has 4 equal sectors colored pink, purple, blue, and green. What is P (blue)? If necessary, round your answer to 2 decimal places.
Answer: 0.25
Giovanna owns a farm. She is going to randomly select one animal to present at the state fair. She has 6 pigs, 7 chickens, and 10 cows. What is P (chicken)? If necessary, round your answer to 2 decimal places.
Answer: 0.3
You draw a card at random from a deck that contains 3 black cards and 7 red cards. What is P (draw a black card)? If necessary, round your answer to 2 decimal places.
Answer: 0.3
You roll a fair 6-sided die. What is P (roll greater than 4)? If necessary, round your answer to 2 decimal places.
Answer: 0.33
You spin the spinner shown below once. Each sector shown has an equal area. What is P (beaver)? If necessary, round your answer to 2 decimal places.
Answer: 0.33
You spin the spinner shown below once. Each sector shown has an equal area. What is P (shaded sector)? If necessary, round your answer to 2 decimal places.
Answer: 0.4
Cam can't figure out what to eat. He is going to randomly select a piece of fruit from his pantry. There are 4 apples and 5 bananas in his pantry. What is P (select an apple)? If necessary, round your answer to 2 decimal places.
Answer: 0.44
You flip a fair coin. What is P (heads)? If necessary, round your answer to 2 decimal places.
Answer: 0.5
You flip a fair coin. What is P (tails)? If necessary, round your answer to 2 decimal places.
Answer: 0.5
You spin the spinner shown below once. Each sector shown has an equal area. What is P (not shaded sector)? If necessary, round your answer to 2 decimal places.
Answer: 0.5
Mrs. Avery is going to randomly select one student from her class to read a poem out loud. There are 15 boys and 13 girls in her class. What is P (boy)? If necessary, round your answer to 2 decimal places.
Answer: 0.54
You randomly draw a marble out of a bag that contains 20 total marbles. 12 of the marbles in the bag are blue. What is P (draw a blue marble)? If necessary, round your answer to 2 decimal places.
Answer: 0.6
You spin the spinner shown below once. The spinner has 4 equal sectors colored pink, purple, blue, and green. What is P (not purple)? If necessary, round your answer to 2 decimal places.
Answer: 0.75
You randomly draw a marble from a bag of marbles that contains 8 blue marbles, 5 green marbles, and 8 red marbles. What is P (draw a blue or red marble)? If necessary, round your answer to 2 decimal places.
Answer: 0.76
You spin the spinner shown below once. Each sector shown has an equal area. What is P (not squirrel)? If necessary, round your answer to 2 decimal places.
Answer: 0.8
You roll a fair 6-sided die. What is P (not 5)? If necessary, round your answer to 2 decimal places.
Answer: 0.83
Joel has an MP3 player called the Jumble. The Jumble randomly selects a song for the user to listen to. Joel's Jumble has 2 classical songs, 13 rock songs, and 5 rap songs on it. What is P (rock song or rap song)? If necessary, round your answer to 2 decimal places.
Answer: 0.9
