Suppose the frequency curve below is based on 400 cases and is drawn to a much larger scale on a blackboard. Suppose the total area under the blackboard version is 200 square inches. (a) If the area between scores of 30 and 40 equals 50 square inches, how many cases fall between 30 and 40? (b) Suppose 160 cases fall above a score of 50. What is the area under the curve above a score of 50?

Question

Suppose the frequency curve below is based on 400 cases and is drawn to a much larger scale on a blackboard. Suppose the total area under the blackboard version is 200 square inches. (a) If the area between scores of 30 and 40 equals 50 square inches, how many cases fall between 30 and 40? (b) Suppose 160 cases fall above a score of 50. What is the area under the curve above a score of 50?

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The Answer of Suppose the frequency curve below is based on 400 cases and is drawn to a much larger scale on a blackboard. Suppose the total area under the blackboard version is 200 square inches. (a) If the area between scores of 30 and 40 equals 50 square inches, how many cases fall between 30 and 40? (b) Suppose 160 cases fall above a score of 50. What is the area under the curve above a score of 50?

Suppose the Frequency Curve Below Is Based on 400 Cases