Ask your own question, for FREE!
Mathematics 18 Online
OpenStudy (anonymous):

Scatter plots. I need to make a scatter plot for 12 points of data. arm span 70” height 71.5” There's 11 other ones, i just need help figuring out how to do at least one.

OpenStudy (anonymous):

OpenStudy (anonymous):

X value. Arm span 70” 71.” 67” 76.” 77” 55” 54” 68” 61” 54” 57” 67”

OpenStudy (anonymous):

Y value. Height 71.” 72” 69.” 78” 79” 57” 56.” 69” 63” 56” 58” 68”

OpenStudy (anonymous):

Theres the graph i made for it with the line of best fit. Now i just need help with the questions. Which two points did you use to draw the line of best fit? Write the equation of the line passing through those two points using the point-slope formula y - y1 = m(x - x1). Show all of your work. Remember to find the slope of the line first. Using the equation that you found in question 2, approximately how tall is a person whose arm span is 66 inches? According to your line of best fit, what is the arm span of a 74-inch-tall person?

OpenStudy (anonymous):

I don't know anything about this topic. I've never read this. Not in my course but being a math student I would like to learn about this from you if you can teach me.

OpenStudy (anonymous):

basically i had to collect 12 points of data. Arm span and height from each person. create a scattered plot graph for it using the x and y factors. arm span is x and height is y

OpenStudy (anonymous):

Teach in a way that even a dummy can understand. I have no knowledge about this. Start from beginning

OpenStudy (anonymous):

From the ABCs

OpenStudy (anonymous):

Okay for my assignment i had to measure 12 people for their height and their arm span (stretching your arms wide open, measuring from finger tip to finger tip)

OpenStudy (anonymous):

Okay!

OpenStudy (anonymous):

Then?

OpenStudy (anonymous):

i made this graph

OpenStudy (anonymous):

Yes, I saw that

OpenStudy (anonymous):

to record the data on

OpenStudy (anonymous):

from that i made a scatter plot. Which is basically just a scatter of dots based on the numbers i recorded

OpenStudy (anonymous):

okay! more..

OpenStudy (anonymous):

(70,71) (71,72) and so forth.

OpenStudy (anonymous):

now for making the graph i had to take all those coordinates (x and y) and create the graph from them

OpenStudy (anonymous):

Oh.. okay! After that?

OpenStudy (anonymous):

so on the graph i had to go 70 points to the right and 71 points straight up from that. i had to repeat that process for every single piece of data i collected which created my scatter plot

OpenStudy (anonymous):

now is the part im stuck on. the questions i have to answer

OpenStudy (anonymous):

Okay... so, let me think.

OpenStudy (anonymous):

thats just the plain graph without the best fit line

OpenStudy (anonymous):

Is this graph okay?

OpenStudy (anonymous):

Y axis - Arm Span X axis - Height

OpenStudy (anonymous):

Yeah actually that graph is a lot easier to see than mine

OpenStudy (anonymous):

We have to find equation of line?

OpenStudy (anonymous):

Yes, Which two points did you use to draw the line of best fit?

OpenStudy (anonymous):

I used internet and my keyboard. Hahaha... jk

OpenStudy (anonymous):

lol nice :p

OpenStudy (anonymous):

who can answer this? In the image below, a student designed two triangles for their coordinate cartoon drawing of a cat. The larger triangle was created to represent an ear and the smaller one was created to represent the cat’s nose. Are the two triangles shown similar? If so, what transformation was used to create the smaller triangle? If they are similar, what corresponding parts are congruent and which parts are proportional? If the triangles are not similar, explain why not. Make sure to provide evidence and explain your answer using complete sentences.

OpenStudy (anonymous):

For rainbowtonic's question, I think the least squares regression would be most helpful

Can't find your answer? Make a FREE account and ask your own questions, OR help others and earn volunteer hours!

Join our real-time social learning platform and learn together with your friends!
Can't find your answer? Make a FREE account and ask your own questions, OR help others and earn volunteer hours!

Join our real-time social learning platform and learn together with your friends!