![P=0.17](https://img.qammunity.org/2023/formulas/mathematics/college/gpsuhbbick4fpw6n9ylil9rpnogeoubiky.png)
Step-by-step explanation
The probability of an event is the number of favorable outcomes divided by the total number of outcomes possible
![P=\frac{favorable\text{ outcomes}}{\text{total outcomes}}](https://img.qammunity.org/2023/formulas/mathematics/college/qlpn77oc735plr5sd1s7w1jj470gv8lv78.png)
then
Step 1
Let
rectangle filled with spinach= favorable outcomes=3
total outcomes= total casseroles= 3+8+3+4=18
Now, replace.
![\begin{gathered} P=\frac{favorable\text{ outcomes}}{\text{total outcomes}} \\ P=(3)/(18) \\ P=0.1666 \\ \text{rounded} \\ P=0.17 \end{gathered}](https://img.qammunity.org/2023/formulas/mathematics/college/wcxuolrf40pleutfnlqqlnz0msfu2abml6.png)
therefore, the answer is 0.17
I hope this helps you