The chart below provides the results of a 4th grade class on this years standardized test. Class Average National Average Standard Deviation Math 79.2 77.1 9.4 Reading 83.5 $4.7 10.1 a. Determine the z-score for both math and reading:

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The chart below provides the results of a 4th grade class on this years
standardized test.
Class Average
National Average
Standard Deviation
Math
Reading
79.2
77.1
9.4
83.5
84.7
10.1
a. Determine the z-score for both math and reading:
b. In which subject did the class do best? (Explain in terms of z-scores and
percentiles.)
Transcribed Image Text:The chart below provides the results of a 4th grade class on this years standardized test. Class Average National Average Standard Deviation Math Reading 79.2 77.1 9.4 83.5 84.7 10.1 a. Determine the z-score for both math and reading: b. In which subject did the class do best? (Explain in terms of z-scores and percentiles.)
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