I have a jar filled with 5 red marbles, 7 white marbles, and 10 blue marbles. What's the probability of pulling out a blue marble, and then a white marble?
70/462 or 15.2%
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5
Are the following events mutually exclusive?I roll a die and get a prime number and an even number
No. No, they CAN happen at the same time.
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25
I have 50 students. 33 are brunettes, and 17 are blondes. Out of the brunettes, 28 have blues eyes, and 9 of the blondes also have blue eyes. What is the probability of a random student having blue eyes, given they are a blonde?
9/17 or 52.9%
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10
I have a jar filled with 5 red marbles, 7 white marbles, and 10 blue marbles. What's the probability of pulling out a white marble, and then a blue marble?
70/462 or 15.2%
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heart
Other team wins 15 points!
Oops!
fairy
Take points!
5
10
15
20
25
gift
Win 25 points!
Okay!
banana
Go to last place!
Oops!
10
What is the probability of rolling an even number, and then a 5 on a die?
3/36 or 1/12 or 8.3%
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5
The theoretical probability of a coin landing on heads is 50% Therefore, if you flip a coin 128 times, how many times do you expect to see heads?
64
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25
I have 50 students. 33 are brunettes, and 17 are blondes. Out of the brunettes, 28 have blues eyes, and 9 of the blondes also have blue eyes. What is the probability of a random student having blue eyes, given they are a brunette?
28/33 or 84.9%
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5
Are the following events mutually exclusive? You pull a card from a deck. It is a spade, it is a 9
No, they CAN happen at the same time.
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banana
Go to last place!
Oops!
star
Double points!
Okay!
gift
Win 10 points!
Okay!
lifesaver
Give 15 points!
Oops!
thief
Give points!
5
10
15
20
25
star
Double points!
Okay!
fairy
Take points!
5
10
15
20
25
lifesaver
Give 20 points!
Oops!
baam
Lose 25 points!
Oops!
gift
Win 25 points!
Okay!
fairy
Take points!
5
10
15
20
25
lifesaver
Give 20 points!
Oops!
5
A die is cast. What is the probability of rolling a 5?
1/6 or 16.7%
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15
Create a Venn Diagram for this situation. 190 people were interviewed. 68 like red, 76 like blue, and 45 like yellow. 15 like all three. 35 like red and blue. 29 like red and yellow. 19 like blue and yellow.
teacher must check.
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10
I have a jar filled with 5 red marbles, 7 white marbles, and 10 blue marbles. What's the probability of pulling out a red marble, or a white marble, or a blue marble?
100%. It's 22/22
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10
I have a jar filled with 5 red marbles, 7 white marbles, and 10 blue marbles. What's the probability of pulling out a white or blue marble?