what is the center of the data?\nnumber of laps around a track\nthe center is

Explanation:

Step1: Count data points

There are 7 + 4 + 3 + 2+ 1 = 17 data - points.

Step2: Find the median position

Since (n = 17) (an odd number), the median position is (\frac{n + 1}{2}=\frac{17+1}{2}=9).

Step3: Cumulative frequency

Starting from the left, for (x = 1), the frequency (f_1=7). For (x = 2), the cumulative frequency (f_{1}+f_{2}=7 + 4=11). The 9th data - point falls within the group corresponding to (x = 2).

Answer:

2