Question

Plz help me and fast! Show your work too!!

Result Liam
(20 spins) Maria
(50 spins) Olga
(200 spins)
black 15 33 124
red 5 17 76


(d) Based on the theoretical probability, predict how many of 350 spins will be “red.”

Answer 1

My computer is a bit weird so, I can't write fast just to let you all know :)

Answer 2

If you are in a hurry it would be good if oyu presented your question in a way that helpers can read quickly.

I suggest you use 'draw' to lay out the table more clearly.

Also- you should not ask for ,or expect' anyone to give you the complete answer with working. That is prohibited by the code of conduct.

If oyu want help then post the question properly, and work WITH the helper, and your OWN contribution towards the answer

Answer 3

I don't want the answer I want the answer and the work too ok

Answer 4

I want to understand

Answer 5

No - that is not OK

First post the table so we can read it

second - you may get help so YOU can show YOUR work

You should not get the answer.

Answer 6

If you are not happy about me just get out of this question

Answer 7

If you are not happy to follow the code of conduct then maybe it is yu who should go elsewhere?

Answer 8

Also it's my first time I am using open study

Answer 9

I don't know everything on open study, ok!

Answer 10

OK

So you need to work out the probability of red from the existing data

SO -
1st add up all the throws from the 3 people
then
Add up all the red results from the 3 people

Answer 11

270

Answer 12

and the number of red results from all 3?

Answer 13

98

Answer 14

OK

so that tells you that the proportion of red is approximately
98/270

OK?

so multiply that fraction by 350 to find out the number of reds expected in 350 spins

Answer 15

ok, wait it might going to take time

Answer 16

98/ 270 = 0.362962963

Answer 17

right?

Answer 18

do I need to round this number?

Answer 19

0.3 or 0.36?

Answer 20

Yes - so that is the probability of spinning red

(you can round the final number)

So multiply 350 by the probability for your answer

Answer 21

ok, wait :)

Answer 22

this? 0.00103703704

Answer 23

I tried on the cal.

Answer 24

so, it would be... 0.0?

Answer 25

I am a big potato...... Idk ><

Answer 26

you can see that your probability is in th order if one third (very approximately) so it is obvious one third of 350 cannot be 0.00.....

you correctly got 0.362962963

Just MULTIPLY that by 350

Answer 27

ok

Answer 28

127.037037?

Answer 29

OK good - so how many reds (given that you cannot have 'bits' of a spin) would you expect?

Answer 30

Not sure to understand you... Sorry, can you explain it to me in another way ? :)

Answer 31

you cannot have 'half a spin' or 0.3 of a spin or 0.037 of a spin

so how many actual results might you expect in reality if the theoretical number is 127.037037?

Answer 32

350?

Answer 33

you would expect ALL of them to be red (even though the probility is around one third)???

Answer 34

MrNood, I am not so sure to understand what you mean by ALL of them to be red (even though the probility is around one third)???

Answer 35

I am stupid that's why...

Answer 36

You worked out that INTHEORY you might expect 127.037037? spins to be red BUT you cannot have .037037 of a spin - you can only get whole numbers.

So what is the most likely whole number of red spins?

Answer 37

idk... may be 12 or 3?

Answer 38

Mrnood, what do you think?

Answer 39

Mrnood?!?!?!?!?!?!?!?!?!?!??!?!?!?!?!?!?!?!?!?!??!?!?!?!?!?!?!?!?!?!?!?!?!?!?!??!?!?!?!?!?!?!?!?!?!?!?!?!?!!??!

Answer 40

it's spend 33min.... Idk... just help me plz!!!! HELP S.O.S

Answer 41

Wait ok...

Answer 42

0.4?

Answer 43

145?

Answer 44

Mrnood, Plz.................................................................................................................

Answer 45

I was thinking of giving you a medal and I would become a fan, but I don't thing so anymore, just help me!!!!

Answer 46

plz, and I will give you a medal and I would become a fan!!!

Answer 47

Are you there?

Answer 48

MrNood, plz

Answer 49

140
?

Answer 50

SOOO?