Question

someone pls help:

1.http://prntscr.com/jkawad
2. (ANSWER CHECK)http://prntscr.com/jkawev ( 3)
3.http://prntscr.com/jkawoy
4.http://prntscr.com/jkawua
5.(ANSWER CHECK) http://prntscr.com/jkawyq (population)
6. (ANSWER CHECK) http://prntscr.com/jkaxbe (The positive correlation between the number of volunteers collecting trash and the number of trash bags collected)
7.http://prntscr.com/jkaxwq

Answer 1

@Shadow @dude

Answer 2

What did you choose for the first one?

Answer 3

12.5 as a guess since idk how to do this

Answer 4

"What is the percentage of runners who do not bike?"

This is the question. Since they are only asking us to look at runners, we only look at the runner row denoted by "Run." Then we look at the "Do not bike" column as they are asking for the percentage of runners who do not bike.

You grab the number '.103' and convert the decimal into a percentage by moving the decimal two places to the right. You get: 10.3%

Answer 5

@8bithelix Does that make sense?

Answer 6

yes

Answer 7

For the second one, you are correct.

http://prntscr.com/jkb9ck

Simple draw a line with a slope of 1. If a point falls below the line, then it is an employee who sold more cars than trucks.

Answer 8

For the third one, what are you thinking?

Answer 9

no acssociation

Answer 10

wait no

Answer 11

weak positive

Answer 12

Correct :)

Answer 13

This is because they are both increasing, but are scattered all over the scatter plot. If the data points were closer together, it would be a strong positive.

Answer 14

indeed

Answer 15

idk about the next one tho

Answer 16

http://rpsychologist.com/d3/correlation/

You can try playing with the slide to help you visualize what the answer may be.

Answer 17

You have probably already figured out that there is a correlation and it is positive. You just need to determine the value.

Answer 18

okok its /95

Answer 19

.95*/

Answer 20

How did you find 0.95?

Answer 21

looking at the thing you gave me, when the number rises the line starts to tilt upwards so i went off of that and looked at the position of the dots as well, so it had to be 1 or .95

Answer 22

more confident on 1 than .95

Answer 23

Well 1 only occurs when the dots all align together directly on the line.

Answer 24

so its .95 i guess?

Answer 25

Correct

Answer 26

next question

Answer 27

Do you know what a lurking variable is?

Answer 28

They are neither the explanatory nor response variable of interest

Answer 29

They are neither the explanatory nor response variable of interest

Answer 30

Basically it's an underlying variable that the people conducting a study may be unaware of.

Answer 31

So I'm leaning towards what you put for your answer (population).

Answer 32

I agree with you on #6 as well

Answer 33

For #7 which one did you go with?

Answer 34

i went with c

Answer 35

why

Answer 36

It's not C D:

Answer 37

@8bithelix hello?

Answer 38

@Shadow sorry im busy doing biology rn but um

Answer 39

The line of best fit tries to go through as many data points as possible. C completely misses all of them.

Answer 40

Just try see which one would hit the most points

Answer 41

d? i tried doing this in mathway but i cant do the y symbol thing and the closes i got was D

Answer 42

http://prntscr.com/jkcbt7

Answer 43

ohhhh

Answer 44

so its a

Answer 45

Correct