Question A random sample of high school students were surveyed about technological devices. They were asked, “How many computers do you have in your household?”  The table below represents the probability […]

Question The speed (in mph) of randomly selected bicyclists were measured as they were approaching a hill.  The results are presented in the following histogram. How many of those bicyclists […]

Question A group of students were surveyed about the number of times they went to a movie theater last year. Their responses are summarized in the relative frequency table below. […]

Question At a carnival, contestants are asked to keep rolling a pair of dice until they roll snake eyes.  The number of rolls needed has a mean of 36 rolls, with a […]

Question Based on the z-scores calculated above for Stephan’s electric bills in IL and FL, in which state is his electric bill higher, when compared to their respective distributions? Question When Stephan […]

Question In a study to add a new feature to a software program, the programmer introduced two categories, men and women, in the survey she conducted. Is the study observational […]

Question The following data represents the inches of rainfall y  in month x of the year in a city in the U.S. (1 is January, 2 is February, etc.) Using a calculator or […]

Question: Raymond wants to estimate the percentage of parents that use cloth diapers. He asks a randomly selected group of 200parents whether or not they use cloth diapers. What is […]