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(d) Find and interpret the probability that between 9 and 12 of them, inclusive, are satisfied with the airlines. The probability that between 9 and 12 adults, inclusive, are satisfied with the airlines is (Round to four decimal places as needed.)

(d) Find and interpret the probability that between 9 and 12 of them, inclusive, are satisfied with the airlines. The probability that between 9 and 12 adults, inclusive, are satisfied with the airlines is (Round to four decimal places as needed.)

College Algebra
College Algebra
10th Edition
ISBN:9781337282291
Author:Ron Larson
Publisher:Ron Larson
Chapter8: Sequences, Series,and Probability
Section8.7: Probability
Problem 11ECP: A manufacturer has determined that a machine averages one faulty unit for every 500 it produces....
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A poll reported that 63% of adults were satisfied with the job the major airlines were doing. Suppose 20 adults are selected at random and the number who are satisfied is recorded. Complete parts (a) through (e) below. (c) Find and interpret the probability that at least 15 of them are satisfied with the airlines. The probability that at least 15 adults are satisfied with the airlines is 0.1910. (Round to four decimal places as needed.) Interpret the probability. Select the correct choice below and fill in the answer box within your choice. (Round to the nearest integer as needed.) O A. In 100 randomly sampled surveys of 20 adults, exactly 15 out of the 20 adults would be expected to be satisfied with the airlines in about of those surveys. B. In 100 randomly sampled surveys of 20 adults, 15 or more of the 20 adults would be expected to be satisfied with the airlines in about 19 of those surveys. C. In 100 randomly sampled surveys of 20 adults, less than 15 of the 20 adults would be expected to be satisfied with the airlines in about of those surveys. (d) Find and interpret the probability that between 9 and 12 of them, inclusive, are satisfied with the airlines. The probability that between 9 and 12 adults, inclusive, are satisfied with the airlines is. (Round to four decimal places as needed.) ERest Converter
Transcribed Image Text:A poll reported that 63% of adults were satisfied with the job the major airlines were doing. Suppose 20 adults are selected at random and the number who are satisfied is recorded. Complete parts (a) through (e) below. (c) Find and interpret the probability that at least 15 of them are satisfied with the airlines. The probability that at least 15 adults are satisfied with the airlines is 0.1910. (Round to four decimal places as needed.) Interpret the probability. Select the correct choice below and fill in the answer box within your choice. (Round to the nearest integer as needed.) O A. In 100 randomly sampled surveys of 20 adults, exactly 15 out of the 20 adults would be expected to be satisfied with the airlines in about of those surveys. B. In 100 randomly sampled surveys of 20 adults, 15 or more of the 20 adults would be expected to be satisfied with the airlines in about 19 of those surveys. C. In 100 randomly sampled surveys of 20 adults, less than 15 of the 20 adults would be expected to be satisfied with the airlines in about of those surveys. (d) Find and interpret the probability that between 9 and 12 of them, inclusive, are satisfied with the airlines. The probability that between 9 and 12 adults, inclusive, are satisfied with the airlines is. (Round to four decimal places as needed.) ERest Converter
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