Question

A student repeated an experiment of randomly drawing one letter from a bag that contained six letters and recorded the frequency table shown.
Outcome g r a d e s
Frequency 3 1 4 7 5 5
Find the experimental probability of each event.
(a) {e} ______%

(b) {r, s} ______%

Answer 1

so how many times was the event attempted?

Answer 2

I suppose once, but I am not sure.

Answer 3

i would suggest that in order to get at least 3 gs, you would have had to do the event at least 3 times

and to get at least 3 gs and 1r, you would have to do the event at least 3 times + 1 more time

and so on and so forth ....

Answer 4

how many times would we have to do this event in order to get the number of letters that they got entotal?

Answer 5

25

Answer 6

i count 25 as well

now the probability of any given event is the number of times it occurs, divided by the number of times we tried the event

how may es did they get?

Answer 7

they got 5 e's

Answer 8

then we determine the probability of an e as: 5 out of 25, or written another way:
5/25

Answer 9

how many r, and s, did they get ?

Answer 10

they got 6 r and s's

Answer 11

good, then what would that probability be?

Answer 12

6/25

Answer 13

very good :)

Answer 14

so how do I phrase these answers in percents?

Answer 15

5/25 = .20 = 20%

6/25 ... isnt as pretty, but just do the division and multiply by 100

Answer 16

i guess it is as pretty :) 6/25 = .24, so 24%

Answer 17

You are a life saver!! Thanks so much.

Answer 18

good luck ;)

Answer 19

I have another question if you would assist me...