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6. A particular telephone number is used to receive both voice calls and fax messages. Suppose that 25% of the incoming calls involving fax messages, and consider a sample of 25 incoming calls. [Hint: Is this a binomial distribution? (Show your work, even though you can find the answers from the calculator.)] a) What is the probability that (i) At most 6 of the calls involve a fax message? (ii) Exactly 6 of the calls involve a fax message? (iii) At least 6 of the calls involve a fax message? (iv) More than 6 of the calls involve a fax message? b) What is the expected number of calls involving a fax message in the sample? (Do not round your answer.) 0 17

6. A particular telephone number is used to receive both voice calls and fax messages. Suppose that 25% of the incoming calls involving fax messages, and consider a sample of 25 incoming calls. [Hint: Is this a binomial distribution? (Show your work, even though you can find the answers from the calculator.)] a) What is the probability that (i) At most 6 of the calls involve a fax message? (ii) Exactly 6 of the calls involve a fax message? (iii) At least 6 of the calls involve a fax message? (iv) More than 6 of the calls involve a fax message? b) What is the expected number of calls involving a fax message in the sample? (Do not round your answer.) 0 17

A First Course in Probability (10th Edition)
A First Course in Probability (10th Edition)
10th Edition
ISBN:9780134753119
Author:Sheldon Ross
Publisher:Sheldon Ross
Chapter1: Combinatorial Analysis
Section: Chapter Questions
Problem 1.1P: a. How many different 7-place license plates are possible if the first 2 places are for letters and...
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Part 4 and letter b on question 6
Homework 3 X a Annum Universal 27 ID X instructure.com/courses/177490/assignments/1678218 S Shaler Perforrique Com X Page of 3 6. A particular telephone number is used to receive both voice calls and fax messages. Suppose that 25% of the incoming calls involving fax messages, and consider a sample of 25 incoming calls. [Hint: Is this a binomial distribution? (Show your work, even though you can find the answers from the calculator.)] a) What is the probability that (i) At most 6 of the calls involve a fax message? (ii) Exactly 6 of the calls involve a fax message? (iii) At least 6 of the calls involve a fax message? (iv) More than 6 of the calls involve a fax message? b) What is the expected number of calls involving a fax message in the sample? (Do not round your answer.) 17
Transcribed Image Text:Homework 3 X a Annum Universal 27 ID X instructure.com/courses/177490/assignments/1678218 S Shaler Perforrique Com X Page of 3 6. A particular telephone number is used to receive both voice calls and fax messages. Suppose that 25% of the incoming calls involving fax messages, and consider a sample of 25 incoming calls. [Hint: Is this a binomial distribution? (Show your work, even though you can find the answers from the calculator.)] a) What is the probability that (i) At most 6 of the calls involve a fax message? (ii) Exactly 6 of the calls involve a fax message? (iii) At least 6 of the calls involve a fax message? (iv) More than 6 of the calls involve a fax message? b) What is the expected number of calls involving a fax message in the sample? (Do not round your answer.) 17
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