WEBVTT

1
00:00:00.000 --> 00:00:06.652
Here is the problem: Data: 16, 27, 5, 18, 25.

2
00:00:07.103 --> 00:00:09.947
Measures of central tendency for a list of numbers.

3
00:00:10.747 --> 00:00:13.649
Sort the data from smallest to largest.

4
00:00:14.100 --> 00:00:17.734
Mean: add the values and divide by how many there are.

5
00:00:18.184 --> 00:00:24.744
Median: the middle value of the sorted list. With 5 values (odd), the median is value number 3.

6
00:00:25.194 --> 00:00:31.963
Mode: the value(s) that appear most often. Every value appears exactly once, so there is no mode.

7
00:00:32.763 --> 00:00:35.468
Range: largest minus smallest.

8
00:00:36.268 --> 00:00:45.219
So the answer is Mean equals 18.2; Median equals 18; Mode equals no mode; Range equals 22.

9
00:00:45.669 --> 00:00:55.468
The mean balances all values, the median splits the sorted data in half and is less affected by outliers, and the mode is the most common value.

10
00:00:56.268 --> 00:01:02.398
Sum 91 equals mean times n equals 18.2 times 5 equals 91.