### (no subject)

Mar. 17th, 2017 02:32 pm**pebblerocker**

The way some people think about numbers bothers me SO MUCH. I am far from a mathematical genius (I got up to fourth form) but the way some people think about probability REALLY bugs me. Today's instance: "Oh, but you don't know for sure, you're making assumptions!" when I prepare myself for something I consider 90% likely to happen - this person thinks that since the 7% and 3% possibilities COULD happen, I should hold off until I hear which outcome has befallen, or else spend equal effort on preparing for each of the three. Almost as if there aren't any probabilities other than 100% or exactly even chances.

My partner also gets on my wick by rounding off excessively loosely before calculating, along the lines of "65cm is about 50cm so three of them will take up about 1.5m", and by paying more attention to how much the price is reduced than to how much something costs. And the way he uses "more than half" and "less than half" - exactly opposite to the way I use them - has caused a few misunderstandings.

Ah well, maybe it's my brain that's the problem.

My partner also gets on my wick by rounding off excessively loosely before calculating, along the lines of "65cm is about 50cm so three of them will take up about 1.5m", and by paying more attention to how much the price is reduced than to how much something costs. And the way he uses "more than half" and "less than half" - exactly opposite to the way I use them - has caused a few misunderstandings.

Ah well, maybe it's my brain that's the problem.

## Apparently math is hard.

Date: 2017-03-17 02:41 am (UTC)feng_shui_houseTwo fat quarters of the type of fabric the buyer chose costs $21.00 and gives two complete motifs.

One yard of the same fabric costs $17.50 and gives four complete motifs.

Why would you pay $2.50 more to get LESS???

What makes that particularly sad is that you don't have to do any math- you use a drop down menu to select amount, and it tells you the cost before you add it to the cart.

## no subject

Date: 2017-03-18 11:47 pm (UTC)spiralsheepmaybe it's my brain that's the problem*Probably* not. ;-)

Also, the mathematics synapses of your partner's brain appear to have been possessed by a being of unfathomable evil from the dungeon dimensions. I hope the rest of him makes up for this minor failing.... ;-)

(I especially hate people trying to tell me that I shouldn't expect a result that isn't better than average when "average" means that half of [total results] are at the average or less than average, grr.)

## no subject

Date: 2017-03-20 04:00 am (UTC)pebblerockerMy partner has many failings, from numbers to folding T-shirts the wrong way to having a limited capacity for murder mysteries. The emotional labour and housework make up for it (plus his general awesomeness).

I play games involving probability - not gambling, more like repeatedly killing the monster with a one in eleven chance of dropping the key to the hidden level, though I suppose that isn't too far off the definition of gambling. A lot of players handle probability and averages very, very badly - no, you're not guaranteed a key on the eleventh run...

## no subject

Date: 2017-03-20 10:18 am (UTC)spiralsheepI suspect I also fold t-shirts the wrong way. My mother used to fold them with side tramlines but I fold them with a centre line, which isn't nearly as elegant.

## no subject

Date: 2017-03-18 11:25 am (UTC)vjezkova.livejournal.com