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(d) What is the probability that more than 6 of the calls involve a fax message? ou may need to use the appropriate table in the Appendix of Tables to answer this question.

(d) What is the probability that more than 6 of the calls involve a fax message? ou may need to use the appropriate table in the Appendix of Tables to answer this question.

Holt Mcdougal Larson Pre-algebra: Student Edition 2012
Holt Mcdougal Larson Pre-algebra: Student Edition 2012
1st Edition
ISBN:9780547587776
Author:HOLT MCDOUGAL
Publisher:HOLT MCDOUGAL
Chapter11: Data Analysis And Probability
Section11.8: Probabilities Of Disjoint And Overlapping Events
Problem 2C
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A particular telephone number is used to receive both voice calls and fax messages. Suppose that 25% of the incoming calls involve fax messages, and consider a sample of 25 incoming calls. (Round your answers to three decimal places.)

(I have figured out a-c but need help answering part "d")

(d) What is the probability that more than 6 of the calls involve a fax message?
A particular telephone number is used to receive both voice calls and fax messages. Suppose that 25% of the incoming calls involve fax messages, and consider a sample of 25 incoming calls. (Round your answers to three decimal places.) In USE SALT (a) What is the probability that at most 6 of the calls involve a fax message? 0.561 (b) What is the probability that exactly 6 of the calls involve a fax message? 0.182 (c) What is the probability that at least 6 of the calls involve a fax message? 0.621 (d) What is the probability that more than 6 of the calls involve a fax message? You may need to use the appropriate table in the Appendix of Tables to answer this question.
Transcribed Image Text:A particular telephone number is used to receive both voice calls and fax messages. Suppose that 25% of the incoming calls involve fax messages, and consider a sample of 25 incoming calls. (Round your answers to three decimal places.) In USE SALT (a) What is the probability that at most 6 of the calls involve a fax message? 0.561 (b) What is the probability that exactly 6 of the calls involve a fax message? 0.182 (c) What is the probability that at least 6 of the calls involve a fax message? 0.621 (d) What is the probability that more than 6 of the calls involve a fax message? You may need to use the appropriate table in the Appendix of Tables to answer this question.
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