Number
Number
Statistics and Probability
Algebra
Geometry and Measures
Mock Exams

2.3 Averages

Calculate the mean of the following sets of numbers.

1.

0.001, 1.023, 0.278, 1.432, 6.266
mean = 0.001+1.023+0.278+1.432+6.266 5 = 1.8

2.

0.2, 0.3, 1.0
mean = 0.2+0.3+1.0 3 = 0.5

3.

20, 42, 52, 60
mean = 20+42+52+62 4 = 44

4.

4.5 5.5
mean = 4.5+5.5 2 = 5

Meaning of ‘Mean’

mean= total sum of values number of values

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