st. Chapter 4 Tes s Question: 1 pt 19 of 20 (14 complete) This Test: 20 pts pos
ID: 3052254 • Letter: S
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st. Chapter 4 Tes s Question: 1 pt 19 of 20 (14 complete) This Test: 20 pts pos Previous Question a survey, 160 respondents say that they never use a credit card, 1226 say that they use it sometimes, and 2828 say that they use it quently. What is the probability that a randomly selected person uses a credit card frequently? Is it unlikely for someone to use a credit quently? How are all of these results affected by the fact that the responses were obtained by those who decided to respond to a survey sted on the Internet? e probability that a randomly selected person uses a credit card frequently is ound to three decimal places as needed) it unlikely for someone to use a credit card frequently? A. No, because the probability of a randomly selected person using a credit card frequently is greater than 0.05 B. No, because the probability of a randomly selected person using a credit card frequently is less than or equal to 0.05. C. Yes, because the probability of a randomly selected person using a credit card frequently is less than or equal to 0.05 D. Yes, because the probability of a randomly selected person using a credit card frequently is greater than 0.05. ow are all of these results affected by the fact that the responses were obtained by those who decided to respond to a survey posted on t ternet? A. Since this is a voluntary response sample, valid conclusions can be drawn about the entire population of credit card users B. Since this is not a voluntary response sample, valid conclusions can only be drawn about the specific group of people who chose t participate C. Since this is a voluntary response sample, valid conclusions can only be drawn about the specific group of people who chose to D. Since this is not a voluntary response sample, valid conclusions can be drawn about the entire population of credit card users participate ick to select your answer(s)Explanation / Answer
1) P(a randomly selected uses a credit card frequently) = 2828/(160 + 1226 + 2828) = 0.67
Option - A) No, because the probability of a randomly selected person using a credit card frequently igs greater than 0.05
2) Option - C
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