There's a certain statistics that's easy enough to calculate.

But I don't know what it's called.

That is, I'd like to know its name.

The statistics is the point on the x-axis such that

the sum of the y-axis values to the left of the point

is equal to

the sum of y-axis values to the right.

A crude example would be a shop's profit in a 30 day month is

$10/day for day 1 to 10

$20/day for day 11 to 20

$30/day for day 21 to 30.

Total profit is $100 + $200 + $300 = $600.

After day 20 the profit is $100 + $200, which is 1/2 of $600.

So day 20 is the day I'm looking for.

Can anyone tell me what this statistic is called?

Thanks,

Art D'Adamo

ADAdamo@us.imshealth.com