Answer:
Second plot (bottom of middle picture)
Step-by-step explanation:
Rewrite the data points in ascending order.
5 5 5 5 5 5 6 6 6 8 8 8 9 10 10 11
There are 6 data points of 5 cm.
There are 3 data points of 6 cm.
There are 3 data points of 8 cm.
There is 1 data point of 9 cm.
There are 2 data points of 10 cm.
There is 1 data point of 11 cm.
Now look at the plots, and see which one matches those values.
The second plot matches the data.