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(b) {fewer than three lines are in use} 0.46 (c) {at least three lines are in use} 0.54 (d) {between two and five lines, inclusive, are in use} 0.71 (e) {between two and four lines, inclusive, are not in use} 0.25 (f) {at least four lines are not in use} 0.25

(b) {fewer than three lines are in use} 0.46 (c) {at least three lines are in use} 0.54 (d) {between two and five lines, inclusive, are in use} 0.71 (e) {between two and four lines, inclusive, are not in use} 0.25 (f) {at least four lines are not in use} 0.25

College Algebra
College Algebra
7th Edition
ISBN:9781305115545
Author:James Stewart, Lothar Redlin, Saleem Watson
Publisher:James Stewart, Lothar Redlin, Saleem Watson
Chapter9: Counting And Probability
Section9.3: Binomial Probability
Problem 2E: If a binomial experiment has probability p success, then the probability of failure is...
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Can someone please explain it to me why part e and f is wrong??? I need help for e and f ASAP??!!!
(b) {fewer than three lines are in use} 0.46 (c) {at least three lines are in use} 0.54 (d) {between two and five lines, inclusive, are in use} 0.71 (e) {between two and four lines, inclusive, are not in use} 0.25 (f) {at least four lines are not in use} 0.25
Transcribed Image Text:(b) {fewer than three lines are in use} 0.46 (c) {at least three lines are in use} 0.54 (d) {between two and five lines, inclusive, are in use} 0.71 (e) {between two and four lines, inclusive, are not in use} 0.25 (f) {at least four lines are not in use} 0.25
A mail-order company business has six telephone lines. Let X denote the number of lines in use at a specified time. Suppose the pmf of X is as given in the accompanying table. 0 1 3 4 5 P(x) 0.11 0.15 0.20 0.25 0.19 0.07 0.03 Calculate the probability of each of the following events. (a) {at most three lines are in use} 0.71 (b) (fewer than three lines are in use} 0.46 (c) {at least three lines are in use} 0.54 (d) (between two and five lines, inclusive, are in use} 0.71
Transcribed Image Text:A mail-order company business has six telephone lines. Let X denote the number of lines in use at a specified time. Suppose the pmf of X is as given in the accompanying table. 0 1 3 4 5 P(x) 0.11 0.15 0.20 0.25 0.19 0.07 0.03 Calculate the probability of each of the following events. (a) {at most three lines are in use} 0.71 (b) (fewer than three lines are in use} 0.46 (c) {at least three lines are in use} 0.54 (d) (between two and five lines, inclusive, are in use} 0.71
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