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

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

amistre64 · Answer

what is the definition of probability?

anonymous · Answer

the likelihood of something happening

amistre64 · Answer

fair enough .... i would say it is the number of times something can occur for a given set of trials.

amistre64 · Answer

so:

how many times does the letter E show up?  s
                  and how many trials were done?  n

P(E) = s/n

anonymous · Answer

E shows up 6 times and the trials were done 40 times in total so 6/40?

amistre64 · Answer

thats it .... written as a decimal of course per instructions

anonymous · Answer

0.15

amistre64 · Answer

correct :)

anonymous · Answer

Thanks !

amistre64 · Answer

youre welcome