Step by step
The question
Question: find the median of 4, 7, 9, 3, 7 and 6.
Median of 4, 7, 9, 3, 7, 6
The median is the middle number, once the numbers are in order.
median: the middle one, in order
1 Put them in order
First we put them in order, smallest first: 3, 4, 6, 7, 7 and 9.
We still have 6 numbers.
None is lost.
6 numbers ✓
2 Find the middle
We cross out the smallest and the biggest, one pair at a time.
And the next pair.
Two numbers are left in the middle: 6 and 7.
The median is halfway between them.
Halfway: we add them and divide by 2.
median = 6 + 72
6 plus 7 is 13.
median = 132
13 divided by 2 is 6.5.
So the median is 6.5.
median = 6.5
Let's look back.
First: put them in order.
Last: find the middle.
Answer
median = 6.5