00:01
Okay, here we have a number of atm transactions and i want to work out the middlemost number of transactions.
00:09
This means find the median.
00:11
So what i'm doing here is the median.
00:16
And to find the median, the first thing you do is write the numbers in ascending order.
00:22
So i find the smallest one first, which is 30.
00:26
So we'll put 30 here.
00:28
After 30 we have, let's have look, 45, the next one is 49, and we have 50.
00:43
After 50, 55, then 58, then 60, then 65.
00:56
This way you can't really go wrong if you cross them out one at a time...