What method of data collection would you use to collect data for a study of the salaries of college professors at a particular college? The chances of winning the California Lottery are 1 in 22 million. This statement describes The colors of automobiles on a used car lot are A lobbyist for a major airspace firm assigns a number to each legislator and then uses a computer to randomly generate ten numbers. The lobbyist contacts the legislators corresponding to these numbers. What sampling technique is used? A recent survey by a national womens association showed that the average salary of 3500 of its 65,000 membership was $73,000. This number is a Which is used more often? Suppose the standard deviation is 13.1. What is the variance? These data represent the ages of drivers and the number of accidents reported for each age group in Pennsylvania for a selected year. (Age, Number of Accidents) (16, 6605), (17, 8932), (18, 8506), (19, 7349), (20, 6458), (21, 5974) A researcher found a significant relationship between a students IQ, a, the grade point average, b, and the score, y, on the verbal section of the SAT test. The relationship can be represented by the multiple regression equation y = 250 + 1.5a + 80b. Predict the SAT verbal score (to the nearest whole number) of a student whose IQ is 130 and grade point average is 2.2. Interpret an r value of 0.11. Use this table to answer the questions . 1. Identify the class width. 2. Identify the midpoint of the first class. 3. Identify the class boundaries of the first class. 4. Give the relative frequency for each class. The heights in inches of 18 randomly selected adult males in LA are listed as: 70, 69, 72, 57, 70, 66, 69, 73, 80, 68, 71, 68, 72, 67, 58, 74, 81, 72.
