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Probability Review
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Using the table below, calculate the probability that a person will have blue eyes and blonde hair.
8.88%
Find the probability
1/16
How can you simulate whether a field goal kicker makes or misses a field goal if he makes it 80% of the time?
Answers will vary
Give a situation of an event that you could NOT use a spinner with 8 equal sections to simulate the probability
Answers will vary
How many total possibilities of outfits do you have if you have 4 shorts, 5 shirts, and 2 pairs of shoes to choose from?
40
What is the probability of drawing a red card (deck of cards) and then rolling either a 3 or 4 on a die?
1/6
Jennifer had a 24% chance of being elected class president. John had a 36% chance of being elected vice president. What is the probability that both will win?
8.64%
There were 6 purple socks and 4 orange socks in a drawer. Salle picked one sock without looking and then another without replacing the first. What is the probability of drawing 2 purple.
1/3
A test has 2 multiple choice questions, each with 4 answer choices. What is the probability of guessing correctly for both questions?
1/16
Create a tree diagram show all the possibilities if you spin each spinner once.
Check
At a bakery, 7 out of 200 cookies had to be thrown out because they weren’t uniform enough. How many would you expect to have to throw out if you make 1600 cookies?
56
What can you do to make the experimental probability of an experiment get closer to the theoretical probability?
More trials
Gage rolled a die 30 times and it landed on a 5 nine times. Compare the theoretical probability of landing on a 5 to the experimental probability of landing on a 5.
Theoretical - 1/6 Experimental 9/30 (Experimental is higher in this case)
Landon made 20 out of 25 extra points for his football team. How many of the next 20 would you expect him to make?
16
Jimmy won tickets to a baseball game Friday, Saturday, or Sunday. There is a 35% chance his tickets are for Friday, a 43% chance for Saturday. What is the probability his tickets are for Sunday?
22%
The following M&Ms are in a bag: 12 yellow, 8 green, 7 red, 9 blue, and 10 brown. What is the probability of drawing a red or blue?
16/46
What is the probability of drawing a vowel if all the letters in the alphabet are on cards in a bowl?
5/26
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