MTH 304 Study Guide - U.S. Route 25E, Quadratic Equation, Standard Deviation
19 Apr 2013
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Suppose that vehicles taking a particular freeway exit can turn right (r), turn left (l), or go straight (s). Sls, rss, lss: event contains outcomes where all cars go the same direction, or they all go different directions: = { rrr, lll, sss, rls, rsl, lrs, lsr, srl, slr } Because event d totally encloses event c, the compound event c d = d. therefore, c d = { Rrl, rrs, rlr, rsr, lrr, srr, llr, lls, lrl, lsl, rll, sll, ssr, ssl, srs, sls, rss, Using similar reasoning, we see that the compound event c d = c. therefore, c d = { rrl, A college library has five copies of a certain text on reserve. Two copies (1 and 2) are first printings, and the other three (3, 4, and 5) are second printings. A student examines these books in random order, stopping only when a second printing has been selected.
