Mathematics, 23.01.2021 02:50 krlx
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The following two-way table shows the distribution of high school students categorized by their grade level and book-type preference.
A 4-column table with 3 rows. Column 1 has entries junior, sophomore, total. Column 2 is labeled fiction with entries 20, 26, 46. Column 3 is labeled nonfiction with entries 22, 13, 35. Column 4 is labeled Total with entries 42, 39, 81. The columns are titled book-type preference and the rows are titled grade level.
Suppose a high school student is selected at random. Let event A = junior and event B = fiction. Are events A and B independent?
Yes, P(A) = P(A|B).
Yes, P(A) = P(B|A).
No, P(A) ≠ P(A|B).
No, P(A) ≠ P(B|A).
Answers: 3
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