Question

Probability Question.

Check My Answer Please?

Is it 17%

Answer 1

Can you show how you got 17%?

Answer 2

P=event occurs/ Total number of outcomes.

Answer 3

I added all of the numbers and I got 30.
Then I took how many visted the museum but not the zoo which is 5 and I got 5/30 and then the answer is 16.666666666667%

Answer 4

Correct

Answer 5

But it says round your answer to the nearest tenth if needed.

Answer 6

So im thinking you might have to round up to 20%, but dont take my word for it.

Answer 7

Be careful, it says "given the person did not visit the zoo"

Answer 8

that means you can toss out the first row (ignore it completely)

Answer 9

you only care about the people who didn't visit the zoo

Answer 10

so yea he is right he did 5/30

Answer 11

5/30 is not correct

Answer 12

So would it be 5/7 then?

Answer 13

yes

Answer 14

correct

Answer 15

But wouldnt that be odds then?

Answer 16

5 people visited the museum and not the zoo out of 7 people who didn't visit the zoo

Answer 17

odd would be 5:2

Answer 18

you have to express 5/7 as a percentage though

Answer 19

yea i realized that just now

Answer 20

5/7=71.428571428571%

Answer 21

but isn't probability equal to number of event occurs over the total number of outcomes?

Answer 22

there are only 7 outcomes (that did not go to the zoo)

Answer 23

You start out with 30 people, but that "given" statement reduces the population down to 7.

Answer 24

okay, yea