2. Determine whether the value is a discrete random​ variable, continuous random​ variable, or not a random variable. a. The number of fish caught during a fishing tournament b. The time it takes for a light bulb to burn out c. The response to the survey question "Did you smoke in the last week?" d. The number of textbook authors now sitting at a computer e. The number of statistics students now reading a book f. The number of people with blood type A in a random sample of 48 people   same questions

How old are college students? The national age distribution for collee students are shown below. The western associateion of mountain colleges took a random sample of 212 students and obtained the distribution lited second below. Is the sample age distribution for the western association of mountain colleges a good fit to the national distribution? U a=0.05

If you were to draw 15 random samples of 100 residents in a city you may get 15 different mean values simply by chance. These expected differences across samples may be defined as: a. a statistical effect b. sampling error c. random error d. probability

O Descriptive Statistics Choosing an appropriate method to conduct a survey and making an... Town officials want to estimate the number of households that own a dog. Answer the following. (a) Which of the following surveys probably would best represent the entire population of households? O 50 households with a garage are randomly selected; 21 own a dog. O 50 households within a mile of a park are randomly selected; 22 own a dog. O 50 households are randomly selected from the town; 19 own a dog. (b) There are 750 households in the town. Using your answer from part (a), estimate the number of households that own a dog. households X