In Poland, students are required to achieve a score of 21 or higher on the high-school Polish

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In Poland, students are required to achieve a score of 21 or higher on the high-school Polish language “maturity exam” to be eligible for university enrollment. The following graph shows the frequency distribution of scores (Freakonomics 2011).

Relative frequency 0.03 0.02 0.01 0 0 10 20 30 40 50 Score on Polish language exam 60 70

a. Examine the graph and identify the most conspicuous pattern in these data.

b. Generate a hypothesis to explain the pattern.

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The Analysis Of Biological Data

ISBN: 9781319226237

3rd Edition

Authors: Michael C. Whitlock, Dolph Schluter

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