When Mean = Median; Symmetrical Sets

Hi there.

Do Symmetrical Sets always have to have an even number of members? Here’s an example from the quant mountains. Is there any example of symmetrical sets with odd number of members?

image

Sure, think about this:

1, 2, 4, 7, 12, 17, 20, 22, 23

This set is symmetrical, but it has 9 items.

If you split it down the middle at 12, the spacing pattern to the left and right are identical.

I see. I see.

My bad. I should’ve tried and experimented. Thanks.

1 Like