Question

question find the median and mean of the data set below: 21, 26, 35, 18 answer attempt 1 out of 2 median = mean = submit answer

Explanation:

Step1: Sort the data set

First, we sort the data set \(18, 21, 26, 35\) in ascending order. The sorted data is \(18, 21, 26, 35\).

Step2: Calculate the median

Since there are \(n = 4\) (an even number) of data points, the median is the average of the two middle numbers. The two middle numbers are the 2nd and 3rd values. So, the median is \(\frac{21 + 26}{2}=\frac{47}{2} = 23.5\).

Step3: Calculate the mean

The mean is calculated by summing all the data points and dividing by the number of data points. The sum of the data points is \(18 + 21 + 26 + 35=100\). The number of data points \(n = 4\). So, the mean is \(\frac{100}{4}=25\).

Answer:

Median = 23.5
Mean = 25