Answer:
Median: 28.5 or 29
Mean: 28
Explanation:
Mean (Average) 28
Median (Q2) 28.5
Mode 18,24,28,29,30,39 (appears 2 times)
Count (n) 12
Lower quartile (Q1) 24
Upper quartile (Q3) 30
Interquartile range (IQR) 6
Range 21
Geometric Mean 27.26
Minimum 18
Maximum 39
Outliers None
Sum 336
Hope this helps!