Question

The table shows data from a survey about the number of times families travel by car or taxi during an average week. The families are either from a rural town or a large city.

Rural Town City
0 0
0 0
1 2
3 2
7 4
7 8
7 10
14 12
14 16
20 20
45 20

Answer 1

Which of the choices below best describes how to measure the center of this data?


a. Both centers are best described with the mean.

b. Both centers are best described with the median.

c. The country data center is best described by the mean. The city data center is best described by the median.

d. The country data center is best described by the median. The city data center is best described by the mean.

Answer 2

I feel like there is something missing >.<
Mean is the average , and median is the middle number when put in least to greatest order.

Answer 3

yea but i dont know how to determine which is better to use??

Answer 4

Rural mean: 10.72
Rural median: 7

City mean: 8.54
City median: 8

Answer 5

I'd say mean.

Answer 6

I also agree with him ^ mean is the best choice :3

Answer 7

so A?

Answer 8

Yup, we use the mean when the data is normally distributed and the median is best if it is not normal or unknown so..I would say the mean for the city and the median for the rural.

Answer 9

are you absolutely sure?

Answer 10

well its looks like D.

Answer 11

because when the mean = median we have a normal distribution and the city is about normal, but not exact the country (rural) is too different 10 and 7 so it doesn not sound very normal.

Answer 12

If it is normal or almost normal, use the mean

Answer 13

okay thank you!

Answer 14

Not a problem ^^