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1. M = {-6, -5, -4, -3, -2} T = {-2, -1, 0, 1, 2, 3} If an integer is to be randomly selected from set M above and an integer is to be randomly selected from set T above, what is the probability that the product of the two integers will be negative? A.0 B.1/3 C.2/5 D.1/2正确 E.3/5
150, 200, 250, n 2. Which of the following could be the median of the 4 integers listed above? I.175 II.215 III.235
A.I only B.II only C.I and II only C正确 为什么III 不行呢 D.II and III only E.I, II, and III
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