To find the total number of pieces of pottery Keenan took to the fair, we need to add the frequencies of each type of pottery together:
- Bowls: 24
- Cups: 30
- Plates: 24
- Vases: 18
Now, let's add them up:
\[ 24 + 30 + 24 + 18 \]
Calculating this step-by-step:
- \( 24 + 30 = 54 \)
- \( 54 + 24 = 78 \)
- \( 78 + 18 = 96 \)
So, Keenan took a total of 96 pieces of pottery to the fair.