Mr. Rodriguez had his students line up in order from shortest to tallest. Tia was exactly in the middle of all the students. Which measure of center would describe her height?

Median

Step-by-step explanation:

The median value of a distribution is obtained by :

FIRSTLY : Arranging the data in order usually ascending order.

Then the 50th percentile of the data is determined , the value which falls in the 50th percentile is the median of the distribution. The 50th percentile is the exact mid value of the distribution.

This describes the exact same way Tia was chosen in the scenario described above. Hence the measure of the center described is the Median.

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step-by-step explanation:

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x is the total time in minutes for the free response

you are given number of questions as 15 - m and time per item as 8 minutes

to find x multiply the two givens together:

x = 8 * (15-m) = 8(15-m)