Answer:

1 - 2: d. 30.25

3 - 4: 33

5 - 6: 33

Step-by-step explanation:

Mean: 23+23+23+23+23+28+28+28+28+33+33+33+33+33+33+33+33+38+38+38 = 605 / 20 = 30.25

Median:

23+23+23+23+23+28+28+28+28+33+33+33+33+33+33+33+33+38+38+38 =

33 + 33 = 66/2 = 33

Mode: 33, because mode is the number that occurs most often in a data set.