Question

calculate the most appropriate measure of central tendency to describe the following scores:
2.2
-161
-143
-80
1.6
49
63
97
112

a. 2.20
b. -80
c. 1.60
d. 63

Explanation:

Step1: Sort the dataset

$-161, -143, -80, 1.6, 2.2, 49, 63, 97, 112$

Step2: Identify central tendency type

The dataset has extreme low values (-161, -143) that skew the mean, so median (middle value of sorted data) is appropriate.

Step3: Locate the median

There are 9 values, so the 5th value is the median.

Answer:

a. 2.20