Answer:
Hence, Mean or median best represents the center of data.
Step-by-step explanation:
We know that the median is said to be the central tendency of the data.
We are given a data set as:
{27, 29, 26, 28, 25}
Clearly these are 5 data points.
on arranging the data in the increasing order or ascending order we get:
25 26 27 28 29
The median of data is the middle value of the data.
Hence, here we get Median= 27
So, the mean of the data is calculated as the ratio of sum of all the data points to the number of data points.
so,
hence, we get Mean=Median.
Hence, Mean or median best represents the center of data as both are equal.
Given:
A figure of a triangle.
To find:
The measure of angle A.
Solution:
Label the points in the figure as shown below.
In the below figure,
(Vertically opposite angles)
(Congregant angles)
Using exterior angle theorem in triangle ABC, we get
Isolate the variable term x.
Now, the measure of angle A is:
Therefore, the correct option is B.
