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Question

Help.

xximhisgirlxx · Answer

14.   How many tests did the student take during their junior year in high school?  (1 point)
	100
	37
	66 *** my answer 
	29

anonymous · Answer

I got 66 too

xximhisgirlxx · Answer

15.   What is the width of each bin?  (1 point)
	10
	1
	5
	The width varies. * my answer 
(using same graph)

anonymous · Answer

what does it mean of each "bin"

xximhisgirlxx · Answer

@thomaster @jim_thompson5910 @amistre64

xximhisgirlxx · Answer

I honestly have no clue @emily_wilson

anonymous · Answer

well if its for the bar graph then i would say 10

xximhisgirlxx · Answer

16.   Which class has the highest frequency?  (1 point)
	80
	80–89
	90
	The answer cannot be determined. * my answer

xximhisgirlxx · Answer

17.   What is the cumulative frequency of the green bar?  (1 point)
	0.15
	15 * my answer 
	25
	22

xximhisgirlxx · Answer

these are my last two questions on the same graph

anonymous · Answer

I would agree on both

xximhisgirlxx · Answer

Do the answers look right? @amistre64

amistre64 · Answer

the last 2 seem to have issues.

xximhisgirlxx · Answer

What are the issues?

amistre64 · Answer

what is your defiintion of a cumulative frequency?

xximhisgirlxx · Answer

I'm not really sure what it is..

amistre64 · Answer

then what is your best guess at its definition?

xximhisgirlxx · Answer

it's the total of something?

amistre64 · Answer

yes, the total of all that has gone before ... https://www.mathsisfun.com/definitions/cumulative-frequency.html

anonymous · Answer

its the running total

amistre64 · Answer

and i would say that a class is defined by its width, so there is an answer for the other one as well

xximhisgirlxx · Answer

is 17, A?

xximhisgirlxx · Answer

@amistre64

amistre64 · Answer

what is the sum of the first 3 'bins'?

xximhisgirlxx · Answer

3 7 and 15

amistre64 · Answer

add them up

xximhisgirlxx · Answer

25?

amistre64 · Answer

that looks better yes

xximhisgirlxx · Answer

okay, now what about for question 16?

amistre64 · Answer

well, since a class is defined by its width ... how would you consider naming the class with the highest frequency?

xximhisgirlxx · Answer

I think it's B?

amistre64 · Answer

the class (80 to 90) on the graph does have the highest bar ... so if im reading it correctly, i would go with the B option.

xximhisgirlxx · Answer

15.   What is the width of each bin?  (1 point)
	10
	1
	5
	The width varies. 

Does 10 look right for this?

amistre64 · Answer

id go with 10 yes.  but just as an educated guess.

the width of each does not vary, and not of them are 1 or 5 ...

xximhisgirlxx · Answer

13.   If this data were put into a bar graph, which of the following would be true regarding the shape of the graph?  (1 point)
	It would be skewed left.
	It would be skewed right.
	It would be bell-shaped.
	There is not enough information to tell.

xximhisgirlxx · Answer

I think that ones D

amistre64 · Answer

the shape would resemble the outline of the charts right hand side ... if that makes any sense.

each digit tends to take up the same space as a single unit ... if we turn it to the left, and trace over the edge we get:

xximhisgirlxx · Answer

So, A?

amistre64 · Answer

the resulting effect is a not bell shaped, but skewed

amistre64 · Answer

skews to the small end, so yes, to the left in this case

xximhisgirlxx · Answer

Thank you so much!

amistre64 · Answer

the skew refers to the mean, and how the outliers effect it

instead of being over there with most of the data, the tail pulls the mean away from it.

amistre64 · Answer

good luck