1) The mean, median, and mode are equal and are represented by the central point along the vertical axis which determines the highest point of the curve. a) True b) False 2) The area or probability under the normal curve is equal to 100% or 1 to each side from the center. a) True b) False 3) The equivalent area of the z score 1.51 is 0.4345 a) True b) False 4) It measures the distance of any particular raw score from the mean in standard deviation units. a) Standard Score or Z Score b) Normal Distribution c) Normal Curve d) Mean 5) Scores on a history test have average of 80 with standard deviation of 6. What is the z-score for a student who earned a 75 on the test? a) 0.94 b) 0.83 c) 0.85 d) 0.81 6) A group of friends compares what they received while trick or treating. They find that the average number of pieces of candy received is 43, with standard deviation of 10. What is the area of the normal curve corresponding to 35 pieces of candy? a) 29.09% b) 30.54% c) 28.63% d) 28.81% 7) The curve is symmetric around the mean and is asymptotic to the horizontal axis. a) True b) False 8) The equivalent area of the z score 0.83 is 0.2968 a) True b) False 9) The equivalent area of the z score 2.42 is 0.4922 a) True b) False 10) The equivalent area of the z score 3.9 is 0.5000 a) True b) False

Probability Distribution

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