Question

@Mathmale

Answer 1

There will be two parts to this assessment that will require you to gather data. Part 1 will ask you to explain independent probabability. Part 2 will ask you to investigate an issue that is important to you through survey data and write a brief summary of your findings.

Part 1: Using your own words, describe two events that are independent. Use math vocabulary that you have learned so far in this module to explain what it means when events are independent.

Part 2: Define an issue that is important to you (politics, medicine, social media, education, etc.), and think about some things you might want to know about this issue.

Answer 2

For Part 1 @Mathmale am thinking of something like the elections.
People who would vote for Trump and Those who would vote for Clinton BUT the independent variables would be the gender either male or female I think that would work I don't know how to describe it..

Answer 3

It's true that one sex or the other may favor Trump, in which case gender could be treated as your independent variable and a vote for Trump your dependent one.

Answer 4

In the news, you often see tables such as


Trump Clinton

Males 31% 35%
Females 69% 655

Answer 5

Correct. So I know that the gender is independent. But where did u get that 655 from

Answer 6

65%.

Answer 7

Oh make sense now

Answer 8

If you poll voters at random, and are aware of the gender of each voter one at a time, then you have no way of predicting the gender of the next voter. So, yes, I'd agree with you that gender is independent.

Answer 9

Great so I would say that example for part one and refer that the independent is the gender and explain why.. Correct?

Answer 10

Altho I'm generally good at probability and statistics, the identification of dependent and independent events is not my greatest strength. So I may not be able to answer questions of this kind as well as I did yesterday with algebra questions.

Paraphrasing you: "state that the independent VARIABLE is the voter's gender."

typically problems involving

Answer 11

Mathmale I have faith in you. You're brilliant you couldn't solve this problem 2 years ago ( I checked the post) am pretty sure you could now Lol

Answer 12

questions of dependence and independence are more involved, such as the following:

"a high school student chosen at random happens to be male and is taking a math course.
Here there are 2 criteria: student's gender and "taking math course"

Answer 13

Have you heard of "2-way tables" in probability?

Answer 14

Yes I have

Answer 15

And I really hate probabilities too but I need to get this last probabilities assignment..

Answer 16

Great. Please see:

https://www.google.com/search?q=two-way+tables&oq=two-way+tables&aqs=chrome..69i57j0l5.2336j0j7&sourceid=chrome&ie=UTF-8

My point is that these are more complicated situations / problems than just asking the gender of a voter.

Answer 17

Yes I masterD this in Algebra 1

Answer 18

If you look thru these examples carefully and go on to read or review the examples, you'll see that you can use the two-way table to figure out conditional probability, such as "given the fact that a student chosen at random is male, what is the prob. that this student supports Tom Jones for student body president?"

My point is that if you look only at voter gender, there's little or nothing to work on in regard to two variables being dependent or independent.

With this discussion in mind, you need to think a bit more...can you cough up another example situation in which you can discuss questions of dependence / independence?

Answer 19

If you have a textbook, please look for examples of this kind of problem. You could discuss them with me if need be. I have the feeling I could be of much more help to you if we tackled some of your other test questions.

Answer 20

Okay so did we look entirely at part 2?

Answer 21

Part 2: Define an issue that is important to you (politics, medicine, social media, education, etc.), and think about some things you might want to know about this issue.

Briefly explain your issue and what you hope to learn or understand.
Pose a question for which a two-way table is appropriate. Be creative here!
Collect data from at least 20 people (or other sources).
Display your data in a two-way frequency table like the one shown below. Your table can have more rows or columns if you need them.
(there's a table here)

So basically I have to.find an example for part 1 and here I need to.collect and plot data correct?

Answer 22

I hate this kind of problems I meani never needed a help in a quiz but this is awful.. Lol probabilities are..

Answer 23

It took me a long time to understand probabilities, and there are still plenty of gaps in my knowledge. Its a matter of commitment; the more time you spend learning and practicing something, the better you'll likely master it.

Actually the question at hand is a fair one, at least in my book. We learn probability in order to be able to apply it to life situations.

Note how Part 2 includes "Pose a question for which a two-way table is appropriate. Be creative here!" This means a 2-way table is not optional; you must think of a situation for which a 2-way table would be an appropriate tool for calc. various probabilities. Can't help you invent such a situation, but would be willing to respond to YOUR ideas for one.

Answer 24

I'll think this through and tag u to check them.. Thanks Mathmale ;)

Answer 25

My pleasure.

My advice at this point is that you post some other questions as well, so that we still have time to discuss some that I can easily handle.

Answer 26

The depressing part is that all questions are connected here so the rest questions are connected to those an trying to solve. Look them up

Choose a row and column and compare P(A | B) with P(B | A). Explain what each probability means in the context of the situation and data you collected.
Compare P(A∩B) with P(A∪B), and explain what each probability means in the context of the situation and data you collected.
Answer the following reflective questions about completing question 3:
Why did you choose this topic?
How did you collect your data?
What challenges did you encounter in the data collection, data display, or data analysis?
How did you overcome these challenges?

Answer 27

@Mathmale it in incurabley awful I can't come up w anything but just see if this would work
Trump| Clinton. | non | total
Male| 45% 46% 9%
Female| 25% 50% 25%

Idk am so confused I know it must be wrong and if not wrong something is wrong or messing

Answer 28

@mathmale here's what i achieved so far and tell me if something anything is wrong/ and i need your guidance in the questions left.

Answer 29

@phi will you please help me out

Answer 30

It will take time to look at what you did so far.

Answer 31

check the file. it is not that much

Answer 32

Even mathmale hates this Assignment really...

Answer 33

You should "tweak" your answer to the first question.

"Independent event" means knowing how one event turned out does not help you predict how the other turned out.

For example, in an election where both A and B vote, if A and B do not affect each other, then knowing how A voted does not help us to figure out how B voted.

Answer 34

i understand.. is that mean there is an error in my work so far?

Answer 35

I can't come up with an example that uses gender. I think you should just say:
Voter A chooses candidate 1
Voter B chooses candidate 1
the events are independent because
the fact that A occurs does not affect the probability of B occurring.

Answer 36

That would be for part 2 correct? or are you referring to part 1 ?

Answer 37

that is for part 1.
The problem with using voting, is that the events *may* be dependent, because people talk to one another, and may change their minds. But it's possible to be independent.

It would be safer to use an example that is definitely random, like the next number in the lottery in two different states.

Answer 38

i would agree with that. but the thing is Part 1 and 2 are pretty connected if i change 1 i will have to create a whole new thing for 2 as well.. So if you say it would work... but would be better to change then it is correct. My instructor came up with that example anyway.. But the thing is am confused in Part 2 Do you think it is correct? for what i came up with so far?

Answer 39

The first part asks about independent events, and giving the lottery example would be ok.

For part 2, I would simplify to just male/female
and ask 20 people how they would vote: Trump or Clinton
(try to ask about 10 of each group)

Answer 40

Go to the supermarket, and tell people you are doing a math project, and ask them the question. Hopefully you will get 20 people to answer you.

Answer 41

and then plot the numbers?
like the following
Clinton Trump
male: 8 12
Female: 15 5

Is it like that?

Answer 42

yes. But it would be much better if you actually talk to real people and not just make it up.

Answer 43

yeah i know... i would if i could.
So after doing that table shouldn't there be another column for the total or something?

Answer 44

you could add totals (both across and down).