No Laptops Laptops 98 84 63 83 97 93 52 74 97 93 88 57 83 63 88 100 84 86 81 84 100 81 99 91 49 78 83 80 81 89 68 84 78 29 64 47 93 74 72 89 90 57 67 89 70 94 83 30 40 50 60 70 80 90 100 Laptops No Laptops 40- .30 .20 10- 30 40 50 60 70 80 90 100 Relative Frequency
An informal experiment was conducted at McNair Academic High School in Jersey City, New Jersey, to investigate the use of laptop computers as a learning tool in the study of algebra.20 A freshman class of 20 students was given laptops to use at school and at home, while another freshman class of 27 students was not given laptops; however, many of these students were able to use computers at home. The final exam scores for the two classes are shown below.
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The histograms that follow show the distribution of final exam scores for the two groups.
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Write a summary paragraph describing and comparing the distribution of final exam scores for the two groups of students.
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