The following table gives the frequency distribution of the number of errors committed by a college baseball

Question:

The following table gives the frequency of the number of errors committed by a college baseball team in all of the 45 games that it played during the 2011–12 season.
Number of Errors Number of Games
0.............. 11
1.............. 14
2.............. 9
3.............. 7
4.............. 3
5.............. 1
Find the mean, variance, and standard deviation. Distribution
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