Question

the friday attendance at a local theater is shown for the last 7 weeks. what is the median friday attendance for the 7-week period?
week | attendance
1 | 71
2 | 131
3 | 130
4 | 80
5 | 178
6 | 105
7 | 131
a 131
b 117
c 130
d 118

Explanation:

Step1: List attendance values

71, 131, 130, 80, 178, 105, 131

Step2: Sort values ascending

71, 80, 105, 130, 131, 131, 178

Step3: Find middle value (n=7, position $\frac{7+1}{2}=4$)

4th value in sorted list: 130

Answer:

C 130