Find the median and mean of the data set below:
21,40,48,26,32,31
To find the median, we first need to put the data set in order:
21, 26, 31, 32, 40, 48
There are 6 numbers in the data set, so the median is the middle number. In this case, it is 32.
To find the mean, we add up all the numbers in the data set and divide by the number of numbers:
(21 + 40 + 48 + 26 + 32 + 31) / 6 = 29.66666667
The mean is approximately 29.67.
To find the median and mean of the given data set: 21, 40, 48, 26, 32, 31
Step 1: Arrange the numbers in ascending order: 21, 26, 31, 32, 40, 48
Step 2: Find the median:
Since the data set has 6 numbers, the middle two numbers will determine the median. In this case, the middle two numbers are 31 and 32. Therefore, the median is the average of the two middle numbers: (31 + 32) / 2 = 63 / 2 = 31.5.
So, the median of the data set is 31.5.
Step 3: Find the mean:
The mean is the average of all the numbers in the data set.
Mean = (21 + 26 + 31 + 32 + 40 + 48) / 6
Mean = 198 / 6
Mean = 33
So, the mean of the data set is 33.