I need help in this section please!!

Answer:
[tex]\frac{1}{25}[/tex]
Step-by-step explanation:
Probability of first yellow ball[tex]=\frac{total\ yellow\ ball}{Total\ ball}=\frac{2}{10}=\frac{1}{5}[/tex]
Since first ball is again placed in the bag
Probability of second yellow ball[tex]=\frac{total\ yellow\ ball}{Total\ ball}=\frac{2}{10}=\frac{1}{5}[/tex]
These two are independent events so the probability of both yellow balls=[tex]=\frac{1}{5} \times \frac{1}{5} =\frac{1}{25}[/tex]