A baseballpitcher had a 3.91 ERA. His ERA was 0.74 points lower the next year?

Mathematics
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what is the sum and its interpretation? an earned run average [ERA] in baseball is the number of earned runs a pitcher gives up per 9 innings 

Jan 3rd, 2015

The sum is 7.08. If this number is divided by two, the quotient will be the pitcher's 2-yr average ERA.

Jan 3rd, 2015

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Jan 3rd, 2015
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Jan 3rd, 2015
Mar 26th, 2017
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