Question

math help needed

Answer 1

Here is the question

Answer 2

First two options

Answer 3

Last two option

Answer 4

me too if i dont finish theses last assignments right no I cant take my final exam and If I cant take my final exam I am going to stay back

Answer 5

lol @UsukiDoll

Answer 6

@jim_thompson5910

Answer 7

anyone?

Answer 8

I am almost in teaars here people i need help

Answer 9

the last thing you have does is to plot the data,

what happens next?

Answer 10

im not sure I need someone to go through the step with me thats why im here

Answer 11

the question says you have plotted the data, and already have a line of best fit,

the options are


A plot the data... [already complete]
B offer a conclusion
C draw a line of best fit [already complete]
D find correlation coefficient

Answer 12

how can you offer a conclusion without first finding a quantitative measure ?

Answer 13

D I think becuase it's the legitmitlly the most logical

Answer 14

becuase you are right you cant just offer a conclusion

Answer 15

makes sense

Answer 16

I cant just go with what makes sense I need to make sure I choose the best answer or else I will not be going to be able to go to highschool

Answer 17

You have four options,
presumably one is correct, and three are incorrect.

If you have found that option D is more correct than A,B,C,
D must be the correct option.

Answer 18

I know but they pressure here is imense I think it's d but I have never been very good at math.... There is a 25% percent chance I will get it right

Answer 19

There is a 25% chance if you don't read the question and simply guess.

We read the question, and ruled out two of the option immediately.

This left us with two options and and 50% chance of guessing right.

Then we used reason, to assert that one of the remaining options made more sense than the other remaining option.

If our reasoning is sound, we have found the correct option with 100% probability.

Answer 20

do you think you might be able to walk me through the last two questions?

Answer 21

ok

Answer 22

Question

Answer 23

First two options

Answer 24

Last two answer

Answer 25

according to http://mathbits.com/MathBits/TISection/Statistics2/correlation.htm

" A correlation greater than 0.8 is generally described as strong, whereas a correlation
less than 0.5 is generally described as weak. "

Answer 26

so what do you think about a correlation coefficient of 0.67

Answer 27

at first I thought maybe it was b but now im not to sure

Answer 28

Are there only two options here?

Answer 29

no

Answer 30

oh, right i see all four options now

Answer 31

okay good

Answer 32

A: Yes, everyone who doesn't exercise is by definition unhealthy

for this to be true , we would expect the correlation coefficient to very close to 1.00

Answer 33

okay so not a

Answer 34

B: Yes, the correlation coefficient is above 0.5, so that implies causation

hmmm 0.67 is above 0.50

Answer 35

C: No, the data are only weakly correlated and may people are healthy who don't exercise

for this to be true we would expect correlation to be <0.50

Answer 36

this is true

Answer 37

your correlation is 0.67 so that's >0.5 it's not a weak one

Answer 38

esaxcly

Answer 39

my spelling sucks

Answer 40

D: No, poor health and not exercising are completely unrelated
for this to be true
we would expect correlation to be close to 0.00

Answer 41

obviously not C and D. doesn't make sense if your correlation is above 0.5

Answer 42

so wouldn't it be b?

Answer 43

yeah

Answer 44

ready for my last question of the day

Answer 45

yeap, there is significant correlation

Answer 46

NEXT q

Answer 47

Question

Answer 48

First two options

Answer 49

Last two options

Answer 50

What do you think of the options?

Some of the statements in the options are too strong, can you rule them out?

Answer 51

so Michele plays better than other teams and watches videos. wow !

Answer 52

i dont think it can be a becuase it true, you can see how the other team play and attacks

Answer 53

i agree, option A cannot be right, the statement is too strong

Answer 54

its not d because we have information... right?

Answer 55

I think it's double edge sword
1. she is already good before watching videos of other teams
2. she is a horrible player so she watches videos and copies moves from other teams

Answer 56

this is hard....you are right it's a double edge sword

Answer 57

getting good at soccer requires skill and practice.

Answer 58

yeah

Answer 59

Which is the correct option @bobobox ?

Answer 60

I think b is ridiculous. Players can't copy everything perfectly without messing it up.

Answer 61

i think it's c becuase I can watch all the soccor in the world and I wont be playing at the world cup

Answer 62

what do you guys think

Answer 63

yeah, watching videos and playing better did correlate, but we cannot draw any conclusion about causation, there are many other factors at play

Answer 64

wait so what about d

Answer 65

we concluded that there was a correlation

Answer 66

there are other reasons to why she played better
- extra practice
- after school practice
- private coaching

Answer 67

okay so c

Answer 68

yay!

Answer 69

okay that right!!!! But the question we did before this was wrong

Answer 70

Are you sure?

Answer 71

hmmm i suppose a correlation of 0.67 doesn't really imply a causation, it just suggests one

Answer 72

but 0.67 is much greater than 0.50, it's not a weak correlation,

unless the thresholds i got form that web-sight are way off

Answer 73

Positive but that's okay I got a 70 exactly so I'm happy

Answer 74

what was the answer they wanted?

Answer 75

the other options all seem worse

Answer 76

WHAT! Ok I'm glad that the last question was right but yeah I agree with Unkle. what do they want?

Answer 77

and it's website xD

Answer 78

my spelling sucks tooo

Answer 79

It's Laurel springs school and they don't tell you the right answer they just say it's wrong

Answer 80

either the site Unkle got was wrong or they are stupid

Answer 81

that's a private school? O_O!

Answer 82

Good job @UnkleRhaukus and @UsukiDoll

Answer 83

assuming Laurel springs school is right:

i guess it has to be

C: "No, the data are only weakly correlated and may people are healthy who don't exercise"

and that the threshold they are using is <0.70 , is weak correlation.

Answer 84

Agreed I could have never done that without you guys

Answer 85

OH WOW! How does Physical Education work in an online school XD

Answer 86

i had to go to a gym at my high school

Answer 87

Remember that even a perfect correlation, doesn't imply causation.