Question

The table shows the daily changes in the barometric pressure (in inches of mercury) for four days. What is the mean change?
Monday -0.05
Tuesday 0.09
Wednesday -0.04
Thursday -0.08

Answer 1

Given  :  daily changes in the barometric pressure for four days.

To Find :   the mean change

Solution:

Monday       -0.05

Tuesday        0.09

Wednesday  -0.04

Thursday       -0.08

Total   =        - 0.08

Mean  Change = (-0.08)/4  = -0.02

mean change is -0.02    inches of mercury

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