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August 22, 2014

Posted by **Anonymous** on Monday, September 12, 2011 at 10:48pm.

Mean SD

Math 67 9.58

English 78 12.45

One student’s Math score was 70 and the same individual’s English score was 84. On which exam did the student do better?

- statistics -
**MathGuru**, Tuesday, September 13, 2011 at 7:11pmUse z-scores.

Formula:

z = (x - mean)/sd

For Math:

x = 70

mean = 67

sd = 9.58

For English:

x = 84

mean = 78

sd = 12.45

Find both z-scores, then compare.

- statistics -
**Anonymous**, Sunday, April 8, 2012 at 6:16pm.3131

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