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A Theoretical Probability
Solve the following probability word problems.
Name: Date:
Copyright ©2011 WorksheetWorks.com
You roll a nineteen-sided die (with
numbers one through nineteen).
What is the probability that the
value of the roll will be a multiple
of three?
( 1 )
A jar contains seven blue
marbles, three red marbles and
three green marbles, and you pick
one without looking. What is the
probability that the marble will be
either red or green?
( 2 )
You pick one card from a
standard deck. What is the
probability that the card will be the
two of clubs?
( 3 )
You ask a friend to think of a
number from seven to fourteen.
What is the probability that his
number will an even number?
( 4 )
Each of the letters in the word
SUPREMACY are on separate
cards face down on the table. If
you pick a card at random, what is
the probability that its letter will
come after L in the alphabet?
( 5 )
You roll a eight-sided die (with
numbers one through eight). What
is the probability that the value of
the roll will be three?
( 6 )
You roll a eight-sided die (with
numbers one through eight). What
is the probability that the value of
the roll will be two?
( 7 )
A jar contains three blue marbles,
seven red marbles and five green
marbles, and you pick one without
looking. What is the probability
that the marble will be neither red
nor blue?
( 8 )
6 out of 19 sides, or 31%
A Theoretical Probability
Solve the following probability word problems.
A N S W E R K E Y
Copyright ©2011 WorksheetWorks.com
You roll a nineteen-sided die (with
numbers one through nineteen).
What is the probability that the
value of the roll will be a multiple
of three?
( 1 )
A jar contains seven blue
marbles, three red marbles and
three green marbles, and you pick
one without looking. What is the
probability that the marble will be
either red or green?
( 2 )
You pick one card from a
standard deck. What is the
probability that the card will be the
two of clubs?
( 3 )
You ask a friend to think of a
number from seven to fourteen.
What is the probability that his
number will an even number?
( 4 )
Each of the letters in the word
SUPREMACY are on separate
cards face down on the table. If
you pick a card at random, what is
the probability that its letter will
come after L in the alphabet?
( 5 )
You roll a eight-sided die (with
numbers one through eight). What
is the probability that the value of
the roll will be three?
( 6 )
You roll a eight-sided die (with
numbers one through eight). What
is the probability that the value of
the roll will be two?
( 7 )
A jar contains three blue marbles,
seven red marbles and five green
marbles, and you pick one without
looking. What is the probability
that the marble will be neither red
nor blue?
( 8 )
6 out of 13 marbles, or 46%
1 out of 52 cards, or 1,9%
4 out of 8 numbers, or 50%
6 out of 9 letters, or 66%
1 out of 8 sides, or 12%
1 out of 8 sides, or 12%
5 out of 15 marbles, or 33%
6 out of 19 sides, or 31%

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Worksheet works theoretical_probability_1

  • 1. A Theoretical Probability Solve the following probability word problems. Name: Date: Copyright ©2011 WorksheetWorks.com You roll a nineteen-sided die (with numbers one through nineteen). What is the probability that the value of the roll will be a multiple of three? ( 1 ) A jar contains seven blue marbles, three red marbles and three green marbles, and you pick one without looking. What is the probability that the marble will be either red or green? ( 2 ) You pick one card from a standard deck. What is the probability that the card will be the two of clubs? ( 3 ) You ask a friend to think of a number from seven to fourteen. What is the probability that his number will an even number? ( 4 ) Each of the letters in the word SUPREMACY are on separate cards face down on the table. If you pick a card at random, what is the probability that its letter will come after L in the alphabet? ( 5 ) You roll a eight-sided die (with numbers one through eight). What is the probability that the value of the roll will be three? ( 6 ) You roll a eight-sided die (with numbers one through eight). What is the probability that the value of the roll will be two? ( 7 ) A jar contains three blue marbles, seven red marbles and five green marbles, and you pick one without looking. What is the probability that the marble will be neither red nor blue? ( 8 ) 6 out of 19 sides, or 31%
  • 2. A Theoretical Probability Solve the following probability word problems. A N S W E R K E Y Copyright ©2011 WorksheetWorks.com You roll a nineteen-sided die (with numbers one through nineteen). What is the probability that the value of the roll will be a multiple of three? ( 1 ) A jar contains seven blue marbles, three red marbles and three green marbles, and you pick one without looking. What is the probability that the marble will be either red or green? ( 2 ) You pick one card from a standard deck. What is the probability that the card will be the two of clubs? ( 3 ) You ask a friend to think of a number from seven to fourteen. What is the probability that his number will an even number? ( 4 ) Each of the letters in the word SUPREMACY are on separate cards face down on the table. If you pick a card at random, what is the probability that its letter will come after L in the alphabet? ( 5 ) You roll a eight-sided die (with numbers one through eight). What is the probability that the value of the roll will be three? ( 6 ) You roll a eight-sided die (with numbers one through eight). What is the probability that the value of the roll will be two? ( 7 ) A jar contains three blue marbles, seven red marbles and five green marbles, and you pick one without looking. What is the probability that the marble will be neither red nor blue? ( 8 ) 6 out of 13 marbles, or 46% 1 out of 52 cards, or 1,9% 4 out of 8 numbers, or 50% 6 out of 9 letters, or 66% 1 out of 8 sides, or 12% 1 out of 8 sides, or 12% 5 out of 15 marbles, or 33% 6 out of 19 sides, or 31%