harperharmony123 harperharmony123
  • 17-10-2022
  • Mathematics
contestada

Classwork
Twelve students were given an arithmetic test, and the
times (in minutes) to complete it were
10, 9, 12, 11, 8,15, 9, 7, 8, 6, 12, and 10.
Find:
a) The range
b) Variance and
c) Standard deviation
by using all the values of the data set.

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