MATH 302 EXAM QUESTIONS AND CORRECT ANSWERS GRADE A+ GUARANTEED PASS.

MATH 302 EXAM QUESTIONS AND CORRECT ANSWERS GRADE A+ GUARANTEED PASS. What is the sampling method used in the following scenario? The librarian at a public library wants to determine what proportion of the library users are children. The librarian has a tally sheet on which she marks whether books are checked out by an adult or a child. She records this data for every fourth patron who checks out books. A. systematic B. cluster C. convenience D. stratified E. simple random Answer Key: A Question 2 of 20 1.0/ 1.0 Points Duration (amount of time) is what type of data in the scenario? A study was done to determine the age, the number of times per week, and the duration (amount of time) of residents using a local park in San Antonio, Texas. The first house in the neighborhood around the park was selected randomly, and then the resident of every eighth house in the neighborhood around the park was interviewed. A. Qualitative B. Quantitative Continuous C. Quantitative Disrete Answer Key: B Question 3 of 20 1.0/ 1.0 Points “Number of times per week” is what type of data in the scenario? A study was done to determine the age, the number of times per week, and the duration (amount of time) of residents using a local park in San Antonio, Texas. The first house in the neighborhood around the park was selected randomly, and then the resident of every eighth house in the neighborhood around the park was interviewed. A. Qualitative B. Quantitative Discrete C. Quantitative Continuous Answer Key: B Question 4 of 20 0.0/ 1.0 Points A computer generates 100 random numbers, and 100 people whose names correspond with the numbers on the list are chosen. What type of sampling was used? A. Convenience B. Systematic C. Simple Random D. Stratified E. Cluster Answer Key: C Question 5 of 20 0.0/ 1.0 Points What was the sampling method that was used in the scenario? A study was done to determine the age, the number of times per week, and the duration (amount of time) of residents using a local park in San Antonio, Texas. The first house in the neighborhood around the park was selected randomly, and then the resident of every eighth house in the neighborhood around the park was interviewed. A. simple random B. cluster C. systematic D. stratified Answer Key: C Part 2 of 5 - Section: Statistics, Probability and Key Terms 0.0/ 5.0 Points Question 6 of 20 0.0/ 1.0 Points A Lake Tahoe Community College instructor is interested in the mean number of days Lake Tahoe Community College math students are absent from class during a quarter. X = number of days a Lake Tahoe Community College math student is absent The instructor’s sample produces a mean number of days absent of 3.5 days. This value is an example of a: A. parameter B. statistic C. data D. variable Answer Key: B Question 7 of 20 0.0/ 1.0 Points What is the term for a characteristic or attribute that can assume different values? A. sample B. datum C. exponent D. variable Answer Key: D Question 8 of 20 0.0/ 1.0 Points A Lake Tahoe Community College instructor is interested in the mean number of days Lake Tahoe Community College math students are absent from class during a quarter. X = number of days a Lake Tahoe Community College math student is absent In this case, X is an example of : A. data B. a statistic C. population D. a variable Answer Key: D Question 9 of 20 0.0/ 1.0 Points Ski resorts are interested in the mean age that children take their first ski and snowboard lessons. They need this information to plan their ski classes optimally. Identify the sample. A. the population mean age of children who take their first snowboard lesson B. a subgroup of these children C. all children who take ski or snowboard lessons D. the sample mean age of children who take their first snowboard lesson Answer Key: B Question 10 of 20 0.0/ 1.0 Points Which of the following correctly describes the relationship between a sample and a population? A. A sample is a group of subjects selected from a population to be studied. B. A population is a group of samples that may or may not be included in a study C. A population and a sample are not related. D. A sample is a group of populations that are subject to observation. Answer Key: A Part 3 of 5 - Section: Variation and Rounding Off Knowledge Check Questions 0.0/ 5.0 Points Question 11 of 20 0.0/ 1.0 Points Crime-related and demographic statistics for 47 US states were collected from government agencies, including the FBI’s Uniform Crime Report. One analysis of this data found a strong connection between education and crime indicating that higher levels of education in a community correspond to higher crime rates. Which of the potential problems with samples discussed below could explain this connection? A. Undue Influence B. Causality C. Self-selected samples D. Problems with samples Answer Key: B