Curriculum
Mathematics — First Preparatory
Unit 1: Numbers
0/10
Unit 2: Algebra
0/4
Unit 3: Statistics
0/6
Unit 4: Geometry
0/6
Text lesson
The Arithmetic Mean
The Arithmetic Mean
Common mistakes
Common mistakes
- Dividing by the wrong number. We divide by the number of values, not by the largest value.
- Ignoring the frequencies in a frequency table when calculating the mean.
- Confusing the arithmetic mean with the range or the median.
- Forgetting that the mean can be a decimal, so it does not have to be a whole number.
The Arithmetic Mean · 4 / 5