Question

The table shows the result of rolling a number cube several times
________________________________
outcome 1 2 3 4 5 6
________________________________
number of times 5 4 7 5 4 5
Outcome ocurred
________________________________
To the nearest percent, what is the experimental probability of rolling a 3 or a 6?

A. 12%

B. 30%

C. 33%

D. 40%

Answer 1

Ohhh my answer is wrong neways -_-
n= 30

Answer 2

ok now I understand, thank you the answer is B 30%

Answer 3

P(3 or 6) = P(3) +P(6)

So n is the amount of times the die is rolled which is:
n = 5+4+7+5+4+5 = 30

So \[ P(3) = \large \frac{ \text { amount of times die land on 3} }{ \text{ Total times die rolled}}\]

So \[P(3)=\frac{7}{30} \]

And\[ P(6) = \large \frac{ \text { amount of times die land on 6} }{ \text{ Total times die rolled}}\]

So \[P(3)=\frac{5}{30} \]

Hence P(3 or 6) = P(3) +P(6) =\( \frac{7}{30} +\frac{5}{30}= .4\)

So the probability that it will land on either 3 or 6 is .4

Answer 4

Why would u think that the answer is B?

Answer 5

maybe, I'm confused now, but B can be the right answer

Answer 6

Ok at what point did you get confused?

Answer 7

btw P(3) means the probability that the die will land on 3
and P(6) means the probability that the die will land on 6

Answer 8

Because I ask the same question to weegy.com and they get 30%, so I don't know.

Answer 9

But I trust in openstudy

Answer 10

Ok But read what I wrote. Do you follow what I did?

Answer 11

I'm doing now

Answer 12

ok good

Answer 13

and a percentage is a number times 100
So keep that in mind for the answer :P

Answer 14

ok thanks

Answer 15

so for example if the probability is .75 then we would multiply .75*100 and we would get 75%

Answer 16

right!

Answer 17

so do you follow what i did?

Answer 18

So what would the answer be based on my explanation?