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Based on the information in given Exercise, if the advisor has at least one person sign up for the advanced class, what is the probability that at least three people have signed up?
Exercise A financial advisor frequently holds investment counseling workshops for persons who have responded to his direct mailings. The typical workshop has 10 attendees. In the past, the advisor has found that in 35% of the workshops, nobody signs up for the advanced class that is offered; in 30% of the workshops, one person signs up; in 25% of the workshops, two people sign up; and in 10% of the workshops, three or more people sign up. The advisor is holding a workshop tomorrow. What is the probability that at least two people will sign up for the advanced class? What is the probability that no more than one person will sign up? Draw a Venn diagram that includes the possible events and their relative frequencies for this situation.
List the possible realizations of the random vector; - Determine the probability of each realization; - Determine the mean vector;
Set up the appropriate null and alternative hypothesis for testing whether the original sample overestimated the average executive director annual salary.
A lab test is 95% eff ective in detecting a disease. The test gives a false positive (reports the patient has disease when they do not) for 1 % of the healthy population tested.
suppose we select an srs of size n 100 from a large population having proportion p of successes. let p be the
Utilizing the chart parameters developed above to define the control charts for future candy bar production, Compute the appropriate plotting points from the data.
Three children living, has assets of $156,000, has an index of health status of 141, and has 2.5 social activities a week on the average?
two marbles are selected one at a time from a jar of marbles containing 10 black 10 brown 10 white and 10 green
Assuming normal populations with equal standard deviations, use the 0.01 level in examining whether pulling the trailer uses significantly less fuel than driving with the rooftop carrier.
A survey of 100 dog owners showed that the average dog ‘checked the mail' eleven times during an evening walk. Which question most probably represents the purpose of the study?
A sample of 9 customers is selected. What is the probability that exactly 2 customers in the sample will default on their payments?
in a group lineup of 7 models in a commercial 3 are male and 4 are female. in how many ways can you arrange 3 models in
According to one study, 21% of all college students nationwide identify themselves as politically liberal. You suspect this percentage may be different at Swarthmore. You plan a survey of first-year students to test your suspicion. What hypotheses..
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