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You're given the following frequency distribution for number of errors 55 students made in the test

Errors Frequency
0-2 11
3-5 14
6-8 9
9-11 4
12-14 7

 Find out:

a) mean,

b) variance

c) standard deviation.

Statistics and Probability, Statistics

  • Category:- Statistics and Probability
  • Reference No.:- M922306

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