Mathematics for IGCSE & O level - Categorical, Numerical And Grouped Data (Section 6 - No. 47)
If the data set is: 1, 1, 2, 3, 4, 4, 4, 5, what are the mean and the median?
3 and 3
3 and 3.5
3.5 and 3
3.5 and 3.5
Explicació
Mean = (1+1+2+3+4+4+4+5)/8 = 3. Median is the average of the 4th and 5th value = (3+4)/2 = 3.5