In a population, about 40% of people have brown eyes, 35% have blue, 12% have green, 7% have gray, and 6% have hazel. If two are selected, find the probability that at least one has brown eyes.
0.64
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10
If 1 of the subjects is randomly selected, find the probability of selecting someone who was sentenced to prison or entered a plea of guilty.
0.986
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heart
Other team wins 25 points!
Oops!
gift
Win 20 points!
Okay!
fairy
Take points!
5
10
15
20
25
baam
Lose 20 points!
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5
The sum of the probabilities of all possible events must ________.
Equal 1
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15
If 2 different study subjects are randomly selected, find the probability that they both entered pleas of not guilty.
0.00484
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10
If 1 of the 1028 subjects is randomly selected, find the probability of selecting someone sentenced to prision.
0.438
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10
If 1 of the 839 challenges is randomly selected, find the probability of getting a challenge that was rejected.
512 / 839 or 0.610
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10
If 1 of the 839 challenges is randomly selected, find the probability of getting a challenge that was made by a male player or was rejected.
713 / 839 or 0.850
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10
Find the probability of randomly selecting 1 of the 839 challenges and getting a challenge that was accepted and was made by a female player.
126 / 839 or 0.150
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5
What is the probability of an event that is certain?
Probability = 1
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trap
No points!
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gold
Win 50 points!
Okay!
fairy
Take points!
5
10
15
20
25
banana
Go to last place!
Oops!
10
35% of the population has blue eyes. If someone is randomly selected, what is the probability that he or she does not have blue eyes?
0.65
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trap
No points!
Oops!
gold
Win 50 points!
Okay!
shark
Other team loses 15 points!
Okay!
lifesaver
Give 25 points!
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5
A compound event is ___________.
...Any event combining two or more simple events.
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5
What does it mean if the probability of an event is equal to 0?
The event is impossible
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10
If 1 of the subjects is randomly selected, find the probability of selecting someone who entered a plea of not guilty or was not sentenced to prison.