Calculate the Quartile Deviation from the following data. class - | < 5 | < 10 | < 15 | < 20 | < 25 | < 30 |
frequency| 2 | 4 | 7 | 13 | 27 | 40 | ​

Assuming the question is "how much more money needs to be raised..."

Add the contributions:

5,358 + 2,834 + 4,132 = 12,324 < this is the current total amount raised. subtract this from the goal, 14,000 to find out much more money is needed for the playground.

14,000 - 12,324 = 1,676

 $1,676  is still needed in order to create the playground.