Question

A box contains tiles with letters A,B,C,D and E. Lana chooses a tile at random, writes down the letter, and puts the tile back in the box.He repeats this experiment a total of 40 times, with the following results

A- with a frequency of 12
B- with a frequency of 8
C- with a frequency of 9
D with a frequency of 5
E with a frequency of 6

Write the probability of choosing an E tile. Write answer as a decimal