For each of the following, determine if the function is injective and/or surjective. (a) Let A be a well ordered set. Define P(A) →A by the following. Let BCA, f(B) = b where b is the least element of B. (b) Let f: R→→R be defined by f(x) = tanr. (c) g: Z² → Z² by g(m, n) = (m+n, m+2n)

The table below contains the periodontal status of individuals and their sex. Periodontal status refers to gum disease where individuals are classified as either Healthy, have Gingivitis, or have Periodontal Disease (Perio). Female Male Total Healthy 2108 1124 3232 Gingivitis 1582 937 2519 Perio 873 931 1804 Total 4563 2992 7555 Find Pr{Female or Gingivitis). If necessary, round your answer to 3 places after the decimal.

Module 6: Binomial Probability SUPPORT Worksheet Range of Values Calculator Command Information Probability (3 decimal places) for x n = 14 p = 30% X = 7 {7} binompdf (14, .30, 7) 0.062 X = 5 p = 64% n = 9 n = 10 p = 57% X = "less than 6" p = 68% n = 17 X = "at least 10" n = 11 p = 36% X = "between 3 and 7" (inclusive)

How many ways can you arrange the letters of ANTIDIFFERENTIATE if it must end with an E, and the R  and the D must be adjacent to each other (RD or DR) ?