Question

The ages of two groups of yoga students are shown in the following dot plots:
The mean absolute deviation (MAD) for group P is 4.15 and the MAD for group Q is 5.35. Which of the following observations can be made using these data?

Group P has less variability in the data.

Group P has greater variability in the data.

Group Q has a lower range.

Group Q has a lower mean

Answer 1

http://nefec.flvs.net/webdav/assessment_images/educator_mjmath2_v14/mjmath2_practice_m8_g10_c2.jpg @jhonyy9 @jim_thompson5910 @smari306 @pphalke

Answer 2

The link doesn't work. You'll have to attach the image file instead of post a link.

Answer 3

what are your thoughts on this problem so far? are you able to eliminate any options?

Answer 4

okay, Let me see @jim_thompson5910

Answer 5

Is the statement `Group Q has a lower range` true or false? And why?


Hint: Range = Max - Min

Answer 6

group Q has more

Answer 7

yes the range for Q is larger, so `Group Q has a lower range` is false

Answer 8

which means we can eliminate choice C

Answer 9

I think the answer is A

Answer 10

why do you think that?

Answer 11

Because group P is true. it has less

Answer 12

yes notice how the data in group P is more cluttered together while Q is more spread out

Also, the MAD values tell you how spread out things are. The larger the MAD value, the more spread out. Q has a larger MAD, so Q is more spread out.

Answer 13

"more spread out" is an informal way to say "higher variability"

Answer 14

okay

Answer 15

so we can elimate D ? @jim_thompson5910

Answer 16

were you able to compute the two means?

Answer 17

no

Answer 18

what's your thinking on why we can eliminated D?

Answer 19

because I think the answer is A

Answer 20

the answer is indeed A. We're only allowed to choose one answer? Or multiple?

Answer 21

I guess it's not one of those "check all that apply" kind of problems, so just go with one answer

Answer 22

one loll sorry. I got stuck for a second @jim_thompson5910 thank you

Answer 23

no problem