21 If a term has a negative z score then the term must be: 28 The table below shows the smoking habits of a group of asthma A Negative B positive C below the D above the sufferers. If a heavy smoker is chosen, what is the probability mean mean that it is a man? Nonsmoker Occasional Regular Heavy Total 22-24 Assume the coefficient of determination is computed to be smoker smoker Smoker equal to the value 0. 8464 Mer 374 39 50 48 521 22 What would best describe the scatter gram? Women 383 38 77 36 534 The points The points The points Total 757 77 137 84 1055 A The points B would be C would not D would look 0 . 482 0 . 528 C 0.571 0.573 would form a close to a fit any like a half circle straight pattern roller line coaster. Determine if the following random variable is discrete or 29-30 continuous : The number of people attending college graduation last year. 23 Given the coefficient of determination of 0. 8464 discussed (29) A Discrete B Continuous above. what would be the values of the correlation A O. 62 B O. 88 C 0. 92 D 0. 84 (30) The amount of time required to swim 50 laps of a pool. A Discrete B Continuous 24 Which choice A or B below, best completes the Interpretation of the Coefficient of Determination? We would start with: The Coefficient of Determination measures the proportion of: A Variance of the X values that can be explained by the 31 On a multiple choice test with 63 questions, each question has variance in the Y values. four alternatives (a,b, c,d) with only one of them being the correct choice. For students who guess at all the questions, B Variance of the Y values that can be explained by the variance in the X values. find the mean for the number of correct answers. A 7.5 B 5.35 C 15. 75 D 21.25 32 The heights of 20 year old men are approximately normally 25 A normal distribution has a mean of 132 with a standard distributed with mean 69 inches and standard deviation of 3 deviation of 28. By the Empirical Rule approximately what inches . percent of the scores are outside of the range 76 to 188? What is the probability of a 20 year old man selected at random A 68% B 58 C 328 D 95% is under 72 inches tall? A .1587 B . 9999 C . 8413 D . 5596 26 If you want to find the probability of at least 38 in the normal distribution with a mean of 40, then what area would you want to find A Area to the right of 38 B Area between 38 and 40 C Area to the left of 38 Area above 38 27 In a certain class, there are 12 boys from Bay Shore, 3 girls from Brentwood, 6 girls from Huntington, 6 boys from Farmingdale, 4 boys from Commack, and 5 girls from Garden City. If a teacher calls upon a student to answer a question, what is the probability that the student will be from Brentwood? A 0. 083 B O.182 C 0. 194 D 0.25 Page 4 of 9 Page 5 of9 (X