Answer:
9 red tiles
Step-by-step explanation:
Total number of tiles: [tex]6+8+6=20[/tex]
Total number of red tiles: [tex]6[/tex]
Probability of getting red in one draw: [tex]\frac{6}{20}=0.3[/tex]
This means that you would expect to get red [tex]0.3[/tex] or 30% of the times.
Hence, when you draw tiles 30 times from the bag, you would expect red to be picked 30% of 30 times. This is:
[tex]0.3*30=9[/tex]
So, you would expect to draw a red tile from the bag 9 times.