what is the median value of the data set shown on the line plot? enter your answer in the box.
what is the median value of the data set shown on the line plot? enter your answer in the box.
Answer
Explanation:
Step1: Count data - points
Count the number of 'x's on the line - plot. There are 20 data - points.
Step2: Determine median position
Since there are 20 (an even number) data - points, the median is the average of the values at positions $\frac{n}{2}$ and $\frac{n}{2}+1$ when the data is ordered. Here, $\frac{20}{2}=10$ and $\frac{20}{2}+1 = 11$.
Step3: Find the 10th and 11th ordered values
Counting the 'x's from left - to - right, the 10th and 11th values are both 6.
Step4: Calculate the median
The median is $\frac{6 + 6}{2}=6$.
Answer:
6