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A website reports that 70% of their users are from outside the United States and that 50% of their users log on to their website
A website reports that 70% of their users are from outside the United States and that 50% of their users log on to their website every day. Suppose that 25% of their users are United States users who log on every day. Complete parts a through e below. a) What percentage of the website's users are from the United States? The percentage of the website's users that are from the United States is %. b) What type of probability is the 25% mentioned above? O empirical probability O personal probability O marginal probability O joint probability c) Construct a contingency table showing all the joint and marginal probabilities. Assign user from the United States and users from outside the United States to the columns. Assign users who log on every day user and users who do not log on every day to the rows. United Not United Total States States Log on every day Do not log on every day Total (Do not round.) d) What is the probability that a user is from the United States given that he or she logs on every day? The probability that a user is from the United States given that he or she logs on every day is (Round to three decimal places as needed.) e) Are From United States and Log on Every Day independent? Explain. Choose the correct answer below. O A. No, because the conditional probability that the individual is from the United States given they log on every day is equal to the probability the individual is from the United States. O B. Yes, because the conditional probability that the individual is from the United States given they log on every day is not equal to the probability the individual is from the United States. O C. No, because the conditional probability that the individual is from the United States given they log on every day is not equal to the probability the individual is from the United States. O D. Yes, because the conditional probability that the individual is from the United States given they log on every day is equal to the probability the individual is from the United States
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