Calculating probability from a verbal description
Authored by Jordan Weissberg
Mathematics
9th - 12th Grade
Used 3K+ times
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6 questions
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1.
FILL IN THE BLANKS QUESTION
15 mins • 1 pt
In a math class with 19 students, a test was given the same day that an assignment was due. There were 10 students who passed the test and 14 students who completed the assignment. There were 6 students who passed the test and completed the assignment. What is the probability that a student passed the test? Write your answer as a fraction.
(a)
2.
FILL IN THE BLANKS QUESTION
15 mins • 1 pt
In a math class with 19 students, a test was given the same day that an assignment was due. There were 10 students who passed the test and 14 students who completed the assignment. There were 6 students who passed the test and completed the assignment. What is the probability that a randomly selected student passed the test but did not complete the assignment? Write your answer as a fraction.
(a)
3.
FILL IN THE BLANKS QUESTION
15 mins • 1 pt
In a class 20 of students, 13 have a brother and 5 have a sister. There are 2 students who have a brother and a sister. What is the probability that a student chosen randomly from the class does not have a brother? Write your answer as a fraction.
(a)
4.
FILL IN THE BLANKS QUESTION
15 mins • 1 pt
In a class 20 of students, 13 have a brother and 5 have a sister. There are 2 students who have a brother and a sister. What is the probability that a student chosen randomly from the class has a brother OR has a sister? Write your answer as a fraction.
(a)
5.
FILL IN THE BLANKS QUESTION
15 mins • 1 pt
In a class 22 of students, 15 are upperclassmen and 9 have an A in the class. There are 7 students who are upperclassman and do not have an A in the class. What is the probability that a student is an upperclassman and they have an A? Write your answer as a fraction.
(a)
6.
FILL IN THE BLANKS QUESTION
15 mins • 1 pt
In a class 22 of students, 15 are upperclassmen and 9 have an A in the class. There are 7 students who are upperclassman and do not have an A in the class. What is the probability that a student is an upperclassman OR they have an A? Write your answer as a fraction.
(a)
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