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2.5B 2B November

Question: 1. The blood types of 150 people were determined for a study. O = 62 people; A = 67 people; B = 15 people; AB = 6. If 1 person from this study is randomly selected, what is the probability that this person has either Type A or Type AB blood? A. 62/150 B. 66/150 C. 68/150 D. 73/150 E. 84/150

Answer: D. 73/150

Question: 2. The monthly fees for single rooms at 5 colleges are $370, $310, $380, $340, and $310. What is the mean of these monthly fees? F. $310 G. $340 H. $342 J. $350 K. $380

Answer: H. $342

Question: 3. On a particular road map, 1/2 inch represents 18 miles. About how many miles apart are 2 towns that are 2.5 inches apart on this map? A. 18 B. 22.5 C. 36 D. 45 E. 90

Answer: E. 90

Question: 4. Given ƒ = cd³, ƒ = 450, and d = 10, what is c? F. 0.45 G. 4.5 H. 15 J. 45 K. 150

Answer: F. 0.45

Question: 5. If ƒ(x) = (3x + 7)², then ƒ(1) = ? A. 10 B. 16 C. 58 D. 79 E. 100

Answer: E. 100