Mathematics, 06.11.2019 04:31 emacwhaleng
Each year, students in an elementary school take a standardized math test at the end of the school year. for a class of fourth-graders, the average score was 55.1 with a standard deviation of 12.3. in the third grade, these same students had an average score of 61.7 with a standard deviation of 14.0.
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Each year, students in an elementary school take a standardized math test at the end of the school y...
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