1. A mail-order computer business has six telephone lines. Let X denote the number of lines in use at a specified time. Suppose the probability distribu-tion of X is as given in the accompanying table. 2 K p(x) 0 0.1 1 0.15? 3 4 5 0.25 0.2 0.06 6 0.04 a) Find p(2). b) Calculater the probability of each of the following events. (1) (at most 4 lines are in use} (n) {fewer than 4 lines are in use} (iii) (at least 2 lines are in use} (iv) (between 3 and 5 lines, inclusive, are in use) (v) (between 2 and 5 lines, inclusive, are not in use} (vi) (at least 3 lines are not in use) c) Find the edf of X.

1. A mail-order computer business has six telephone lines. Let X denote the number of lines in use at a specified time. Suppose the probability distribu-tion of X is as given in the accompanying table. 2 K p(x) 0 0.1 1 0.15? 3 4 5 0.25 0.2 0.06 6 0.04 a) Find p(2). b) Calculater the probability of each of the following events. (1) (at most 4 lines are in use} (n) {fewer than 4 lines are in use} (iii) (at least 2 lines are in use} (iv) (between 3 and 5 lines, inclusive, are in use) (v) (between 2 and 5 lines, inclusive, are not in use} (vi) (at least 3 lines are not in use) c) Find the edf of X.

Algebra and Trigonometry (MindTap Course List)

4th Edition

ISBN:9781305071742

Author:James Stewart, Lothar Redlin, Saleem Watson

Publisher:James Stewart, Lothar Redlin, Saleem Watson

Chapter14: Counting And Probability

Section14.2: Probability

Problem 3E: The conditional probability of E given that F occurs is P(EF)=___________. So in rolling a die the...

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