Homework: Section 4.3 Homework Name Score: 0 of 1 pt Due Current Sco Attempts: L
ID: 3060712 • Letter: H
Question
Homework: Section 4.3 Homework Name Score: 0 of 1 pt Due Current Sco Attempts: Late Submis HW Score: 29 41%, 5 of 17 pts Question Help * The table below summarizes results from a study of people who refused to answer survey questions. A market researcher is not interested in refusals or subjects below 120t 17 (5 complete) | 22 years of age or over 59 Find the probability that the selected person refused to answer or is below 22 or is older than 59 Age 30-3940-4950-59-60andover 18-21-22-29 256 23 139 38 Refused 14 36 29 60 e is below 22 or is older than 59 is V Questo The probability (Do not round unti the final answer. Then round to three decimal places as needed) that a randomly selected person refused to answer the survey question Question Question OK This course (MAT Copyright 2018 P Enter your answer in the answer box and then click Check Answer Clear AllExplanation / Answer
Total no of people = 74 + 256 + 246 + 137 + 139 + 203 + 14 + 23 + 36 + 29 + 38 + 60 = 1255
P(refused to answer or below 22 or older than 59) = P(refused to answer) + P(below 22) + P(older than 59) - P(refused to answer and below 22) - P(below 22 and older than 59) - P(older than 59 and refused to answer) + P(refused to answer and below 22 and older than 59)
= 200/1255 + 88/1255 + 263/1255 - 14/1255 - 0 - 60/1255 + 0
= 477/1255 = 0.38
Related Questions
Navigate
Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.