A bag contains 6 red tiles, 8 blue tiles, and 6 green tiles. A tile is drawn, the color recorded, and then the tile placed back in the bag before a tile is drawn again. If this procedure is done 30 times, how many red tiles would you expect to draw?

Respuesta :

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.