Which statement is true regarding the graphed functions? 12fy
10
2
8
6
4+
2
4
-6 -5 -4 -3 -2 -12
+
2 3 4 5 6 x
-4
gl
-6
-st
fx
-121
Of(0) = g(0)
f(-2) = g(-2)
Of(0) = g(-2)
f(-2) = g(0)

Quick! a survey of 57 customers was taken at a bookstore regarding the types of books purchased. the survey found that 33 customers purchased mysteries, 25 purchased science fiction, 18 purchased romance novels, 12 purchased mysteries and science fiction, 9 purchased mysteries and romance novels, 6 purchased science fiction and romance novels, and 2 purchased all three types of books. a) how many of the customers surveyed purchased only mysteries? b) how many purchased mysteries and science fiction, but not romance novels? c) how many purchased mysteries or science fiction? d) how many purchased mysteries or science fiction, but not romance novels? e) how many purchased exactly two types of books?

Identify the type of observational study described. a statistical analyst obtains data about ankle injuries by examining a hospital's records from the past 3 years. cross-sectional retrospective prospective

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