Basic Probability Worksheet With Answer Key

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Name:
Basic Probability
Use each diagram to solve the problems.
A n s w e r s
1) How many pieces are there total in the spinner?
8
1.
2) If you spun the spinner 1 time, what is the probability
2 out of 8
2.
it would land on a gray piece?
3 out of 8
3) If you spun the spinner 1 time, what is the probability
3.
it would land on a black piece?
3 out of 8
4.
4) If you spun the spinner 1 time, what is the probability
it would land on a white piece?
5 out of 8
5.
5) If you spun the spinner 1 time, what is the probability
of landing on either a black piece or a gray piece?
1 out of 6
6.
5 out of 6
7.
3 out of 6
8.
25
9.
6) If you were to roll the dice one time what is the
probability it will land on a 2?
9 out of 25
10.
7) If you were to roll the dice one time what is the
probability it will NOT land on a 4?
star
11.
8) If you were to roll the dice one time, what is the
diamond
probability of it landing on an odd number?
12.
9) How many shapes are there total in the array?
10) If you were to select 1 shape at random from the array,
what is the probability it will be a diamond?
11) If you were to select 1 shape at random from the array,
what shape do you have the greatest probability of
selecting?
12) Which shape has a 36% chance (9 out of 25) of being
selected?
1-10 92 83 75 67 58 50 42 33 25 17
Math
4
11-12 8
0

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