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Mathematics 15 Online
OpenStudy (help_people):

HELP PLEASE

OpenStudy (help_people):

The table shows data from a survey about the number of times families eat at restaurants during a week. The families are either from Rome, Italy or New York, New York: Maximum Minimum Q1 Q3 IQR Median Mean σ Rome 16 0 3 13 10 8.5 8 5.4 New York 20 1 4.5 6 1.5 5.5 7.25 6.1 Which of the choices below best describes how to measure the center of this data? Both centers are best described with the mean. Both centers are best described with the median. The Rome data center is best described by the mean. The New York data center is best described by the median. The Rome data center is best described by the median. The New York data center is best described by the mean.

OpenStudy (help_people):

@phi

OpenStudy (help_people):

i believe it is a

OpenStudy (help_people):

a then right @phi

OpenStudy (phi):

is it IQR median mean 10 8.5 8 1.5 ?? 5.5 7.25

OpenStudy (help_people):

yes

OpenStudy (phi):

What is the IQR for the second row ?

OpenStudy (help_people):

1.5

OpenStudy (help_people):

all of the info you put is correct

OpenStudy (help_people):

@phi

OpenStudy (phi):

I'm thinking. For NY, when it says Q1 4.5 and Q3 is 6, that means 1/2 of the families fit between those two numbers. in other words, a number like 5ish would be a reasonable "middle number"

OpenStudy (help_people):

ok

OpenStudy (phi):

the median is 5.5 which is a better fit than the mean which is 7.25 so NY is definitely median

OpenStudy (help_people):

c then for the answer

OpenStudy (phi):

yes, c looks good. the rome data looks symmetric 3 to 13, middle is 8, the difference between the middle and the "edges" is 5 so mean 8, std 5 would be a good way describe the rome data

OpenStudy (help_people):

may you help me w. another please thank yu so much @phi ?

OpenStudy (phi):

if you make a new post.

OpenStudy (help_people):

ok

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