The median value of the given set of numbers: 21, 3, 7, 17, 19, 31, 46, 20, and 43 is 20 as 20 is the middle value of the given set in ascending order.
Median can be explained as:
- The middle value is among a series of values after being arranged in numerical order or ascending order.
- The middle of the set of values.
- In the case of even numbers found in middle for example in the case of a set of 6 values fall in the middle, then add the values of those two numbers and divide by 2 to get the middle of the two numbers or [tex]\frac{(\frac{n}{2} )th + (\frac{n+1}{2})th}{2}[/tex]
- in case of odd numbers: [tex]{\frac{n+1}{2} }th[/tex]
Solution:
In the given set all numbers are already arranged in ascending order and then find the median:
1, 3, 7, 17, 19, 31, 46, 20, 43.
[tex]\frac{5+1}{2}th[/tex] = 3rd value
There are 5 numbers on the series and only one fall in the middle on counting both the side is 3rd = 20
or by the formula: [tex]\frac{5+1}{2}th[/tex] = 3rd value
Thus, the correct answer is: 20
Learn more about median by example:
https://brainly.com/question/1157284
