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Mathematics 21 Online
OpenStudy (purple_pink):

A climatologist wants to determine the thickness of a glacier with a surface area of about 2 km2. He selected 12 locations at random on the glacier and then measured the thickness of the glacier, in meters, at each location. 29, 41, 38, 36, 29, 34, 44, 46, 43, 35, 40, 47 What is the estimated median thickness of the entire glacier? 39?

OpenStudy (purple_pink):

@AloneS

OpenStudy (purple_pink):

@rebeccaxhawaii

rebeccaxhawaii (rebeccaxhawaii):

Put it in least to greatest order.

OpenStudy (purple_pink):

29, 29, 34, 35, 36, 38,40, 41, 43, 44, 46, 47

OpenStudy (purple_pink):

@rebeccaxhawaii

rebeccaxhawaii (rebeccaxhawaii):

What are the middle numbers?

OpenStudy (purple_pink):

38 &40

rebeccaxhawaii (rebeccaxhawaii):

Then yes 39 is correct!

OpenStudy (purple_pink):

hmmm, okay! but :/ why 38 & not 40?

OpenStudy (purple_pink):

@rebeccaxhawaii

rebeccaxhawaii (rebeccaxhawaii):

you can only have one number for median therefore its 40+38/2

OpenStudy (purple_pink):

40+38=78 78÷2=39 39 is the median?

OpenStudy (purple_pink):

@rebeccaxhawaii

rebeccaxhawaii (rebeccaxhawaii):

mhm

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