13
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Practice Test

Question 13 • Mathematics I

The two conditional relative frequency tables below show the results of a survey asking students whether they are taking a foreign language or not. Table A: Frequency of Foreign-Language Studies by Column Taking a Foreign Language Not Taking A Foreign Language Total Middle school 0 point 3 4 0 point 6 4 0 point 4 High school 0 point 6 6 0 point 3 6 0 point 6 Total 1 point 0 1 point 0 1 point 0 Table B: Frequency of Foreign-Language Studies by Row Taking a Foreign Language Not Taking A Foreign Language Total Middle school 0 point 6 8 0 point 3 2 1 point 0 High school 0 point 8 8 0 point 1 2 1 point 0 Total 0 point 8 0 point 2 1 point 0 Which table could be used to answer the question "Assuming a student is taking a foreign language, what is the probability the student is also in high school?”

Answer
A
Table A, because the given condition is that the student is in high school.
B
Table A, because the given condition is that the student is taking a foreign language.
C
Table B, because the given condition is that the student is in high school.
D
Table B, because the given condition is that the student is taking a foreign language.
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