statistics

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timer Asked: Dec 8th, 2015

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it's simple statistics questions

which_of_the_following_statements_best_describes_the_process_used_to_select_a.docx

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Which of the following statements best describes the process used to select a cluster sample? Select one: a. Select all of the elements from all of the non-overlapping clusters. b. Select all of the elements from some of the non-overlapping clusters. c. Select some of the elements from some of the non-overlapping clusters. d. Select some of the elements from all of the non-overlapping clusters. Question 2 Not yet answered Points out of 2.00 Flag question Question text In how many ways could a committee of five people be selected from eight females and six males if the committee must have more females than males and each gender must be represented? Answer: Question 3 Not yet answered Points out of 2.00 Flag question Question text A recent clinical study, a new non-perscription anti-fungal cream showed the success rate to be 87%. If 12 people purchase the cream and use it as prescribed, what is the probability that at least 10 will have positive results? Enter your response as a three digit decimal. Answer: Question 4 Not yet answered Points out of 2.00 Flag question Question text The names of the manufacturers of the cars in a parking garage is an example of Select one: a. continuous data b. quantitative data c. qualitative data d. discrete data Question 5 Not yet answered Points out of 2.00 Flag question Question text This data represents the probability of the number of traffic tickets being issued in a certain parking lot on campus in a given day. x tickets P(x) 0 .121 1 .147 2 .203 3 .443 4 .086 Which of the following statements is false ? Select one: a. The standard deviation of the number of vehichles ticketed on any given day is approximately 1.17. b. The mean number of vehicles ticketed in any given day is approximately 2.5. c. The probability of having at most 3 vehicles ticketed on any day is approximately 0.914. d. The probability of having at least 2 vehicles ticketed on any day is approximately 0.732. Question 6 Not yet answered Points out of 2.00 Flag question Question text A new customized license plate is offered to the alumni of a nationally chartered fraternity. The license plates must be configured to use three alphabetic charaters and two numeric charaters. (Zero cannot be used due to its resemblence to the letter O and 1 cannot be useddue ot its resemblance to the letter I.) If no character can be used in the license plate more than one time, which of the following statements is true ? Select one: a. More than 2 million different license plates can be produced. b. Fewer than five hundred thousand different license plates can be produced. c. None of the other statements are true. d. More different license plates can be produced in the three alphabetic and two numeric configuration by requiring the first two charaters be letters than if the first two characters are numbers. Question 7 Not yet answered Points out of 2.00 Flag question Question text In how many ways can a research lab director fill two chemist vacancies from a pool of seven applicants and three physicist vacancies from a pool of nine applicants? Answer: Question 8 Not yet answered Points out of 2.00 Flag question Question text Annual salaries reported to the IRS on employees of an accounting firm is an example of Select one: a. qualitative data b. quantitative data c. continuous data Question 9 Not yet answered Points out of 2.00 Flag question Question text When converting frequency values from a distribution into relative frequency values, each observed frequency is divided by the sum of all the frequencies. Unless otherwise specified, what is the minimum number of decimal places that should be kept for accuracy purposes? Enter your response as a whole number. Answer: Question 10 Not yet answered Points out of 2.00 Flag question Question text Selecting one marble from a bowl of marbles where every marble is the same size, shape, weight and texture would be an example what type of probability? Type 1 for classical. Type 2 for empirical. Type 3 for subjective. Answer: Next
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