earned run average
a measure of the effectiveness of a pitcher, obtained by dividing the number of earned runs scored against the pitcher by the number of innings pitched and multiplying the result by nine. A pitcher yielding three earned runs in nine innings has an earned run average of 3.00. Abbreviation: ERA, era
What’s The Difference: Average, Mean, Median, And ModeAs you probably know the terms average, mean, median, and mode are commonly confused with one another because they all describe ways to talk about sets of numbers.
How To Cut Down Run-On SentencesA run-on sentence is a sentence where two or more independent clauses have been incorrectly joined together. An independent clause contains both a subject and a verb and can stand on its own as a complete sentence. Some examples of independent clauses include “Jane ate dinner,” “John went to the store,” and “Sue made a pie.” Comma Splices A comma splice is a grammatical error …
Origin of earned run average
First recorded in 1945–50
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019