Statistics, and how they rule our lives.

I was sitting around today thinking about the way we run our lives, the way we make decision, even the most simple of decision.

Now the literal way to look at this is to say no. Very few people haven structured training in stats as a subject/topic, and surely no one looks at the pure statistics behind each decision they make. But everything we do, we do by weighing up the pros and cons of the result of our topic. Some would say, so what, that’s not stats, it’s just common sense. But what I’m saying is that sure, when I make a decision to cross the road, I don’t think , hey, I have a 5% chance to get hit by a car crossing this road. A. Because I don’t know that and B. common sense.

Aha, you say, I just admitted to common sense, and yes I do, but isn’t common sense just a kind of informal stats. We know the risks associated with crossing the road, sure I may not know it’s 5% exactly, but I know it’s low enough, that the time saved by crossing the road will be worth more than the risk of crossing it. And this counts for every choice we make. It’s why I decide to bunk a class every now and then, because I’m assuming that I can catch up that work at a later stage, because according to the stats I’ve built up by previous experience, I should quite easily be able to achieve it. And again the advantage of sleeping late will be of more benefit to me than if I were to attend the class and sleep through it.

Again I’m stating that I’m talking about the average person, whose choices are based mainly on emotion and experience, not a bunch of actuaries in their air-conditioned offices on the 50th floor where they set my insurance premiums and sort out the order that the traffic lights must change. Although, to a point that might seem a more literal way of our lives being influenced by stats.

Edit—-

If this article seems disjointed, it’s because I wrote different parts at different times and kinda chucked it together.

Also, I still need to add a picture or something to this website to make it look prettier :)

spam spam spam spam spam

So it would appear that someone (read bot) felt that my website was worth spamming with some adverts and other random junk, this however prompted me to go dig through all the settings regarding the comment module I have installed on this website. So now posts need to be confirmed by me before being posted to population. This also means that I won’t go 2 weeks without realising that people have commented on one of my articles. I do however ask that you give me a few days grace to scan posts as it’s not always viable to access my posts the whole time.

I’ve also picked up a bug where it gives you an error when you try and post a comment, but it posts it anyway without you realising it, causing you to post it again, get another error, refresh your page and discover two posts :) I will look into this, although I’m not sure why exactly it’s doing that.

Musings for the future

Was chatting to a friend earlier this evening and realised that I have a bunch of private “projects” I want to do. This website was certainly one of them, so I figured I’d add another page to the site with a list of “current projects” and update them periodically. I think making a list of them will also be helpful to me. Firstly so that I don’t forget about them and secondly so I can cross them off a list and feel like I’ve accomplished something :D

Well, as far as today is concerned, got myself another early Christmas present, a Logitech X-230 2.1 channel sound system I picked up second hand. Very nice, and a huge upgrade on my Genius stereo speakers which are probably close to 10 years old, they’ve done me well though. My other present was a Samsung 2333SW 23″ wide HD monitor. Again, a huge upgrade on my previous 17″ CRT, I am however holding onto my CRT and using them in a Dual Screen setup, I used to use the 17″ with another 15″ CRT. If the speakers have taught me anything though, it’s that bass accentuates music so nicely, and car crashes in Burnout Paradise too. I really feel like I’m in that car when it does it’s 5th barrel roll before it slams into another oncoming vehicle.

The new speakers reminded me just how much I hate 2 prong plugs. I always have, and imagine always will, hate these things with a passion. The only good thing about them, in my opinion, is that they take up less space, but I couldn’t give a damn. 90% of the time they end up being plugged into multiplugs where they live their life in a dangerous balance between making contact and annoying the hell out of me. I’ll probably chop the plug off and replace it with a more sensible, stable 3 prong plug when I get round to buying one.

On the topic of new things, I’ve also finally ditched my favourite 9 year old OS for the new, shiny Windows 7. Impart because my PC needed a restart, in part because I found a fully functional 250GB HDD lying around and impart because I needed an excuse to do some reading for a change. So I’ve started reading a book by local satirist Ben Trovato, have always enjoyed his work, and still do. But to Windows 7. It’s new, it’s shiny, it’s Windows XP. There are new features, new pretty buttons, and they’ve tried to make things easier I guess. I started off hating it as much as Vista, but have started to make peace with it, I figured I might as well. If I can learn to live with Office ’07, I can put up with it’s friend.

I think I’ve just about got rid of all the built in security features that shout at me when I try and open Notepad, but we’ll see how I get on with it. Microsoft, being the people that despise me, have in their all knowing wisdom, once again given us an “upgraded” Start menu. Another start menu that I hate! So I figured, hey, they were clever enough in XP and Vista to offer us the option to use the Classic Menu, which I love, so right-click properties, nothing… A quick Google search returned the truth of the matter that Ms have decided that we need to grow up, so I have. I did find these two nifty apps that allows one to hide the normal Start Menu and run a copy of the Classic Menu. It was also comforting to know that other people hate the new one so much that htey would go and write on forums about it. But after some contemplation I decided my PC didn’t need the extra strain caused by these apps, and have decided to vasbyt.

So for the moment it’s back to my list of projects, flying up to Durban on Saturday with my parents where they’re going to attend a wedding, before we go on with my gran to my uncle’s farm for christmas, back home for new years, although plans still need to be made for that.

Install Flash Drive in A110

The standard 8GB SSD that comes standard in the Acer Aspire is a bit crappy. It’s rather slow, and obviously 8GB isn’t particularly much space. I knew of others who had installed Flash Drives in their netbooks and figured I’d do the same. I couldn’t find any posts about people who had done it, but I did find Tnkgrl who had added a USB bluetooth device to hers and a guy over at WRP & CW – Radio Shack who added a USB fingerprint scanner to his.

They both used different places on the motherboard to access extra USB ports. Both of them work without disabling any of the other USB ports. Tnkrgrl made use of some pins under where the Wi-Fi card is situated, and the Radio Shack hack some points near the CPU. I wasn’t too keen to fiddle with a soldering iron near the CPU, so instead chose to use Tnkgrl’s post for reference. I managed to solder the power wires in quite easily but really battled to get the data wires in place. My soldering iron is unfortunately not built for finicky work like this, so I eventually gave up and decided to use the data points that Radio Shack used.

I purchased a 16GB Kingston Data Traveller G2, stripped it of it’s casing and soldered the appropriate wires to it. Putting everything back together and booting up in Linux revealed the drive to be in working order.

What I plan to do now is to install Windows XP onto the SSD and Linux onto the Flash Drive. Although I am getting very used to Linux, I still have several Apps that I just can’t get to work in Linux, and can find no alternatives.

Below I show how to take apart the Acer. When I did it I followed this guide by Tony Smith.

First remove the battery and unscrew the 6 screws on the underside of the netbook. I have circled them in the following picture. You also need to remove the two rubber feet near where the battery goes, and remove two screws from underneath them.img_4192Turn over the netbook and lift open the screen. The keyboard is held in place by 3 spring loaded clips along the top of the keyboard. I have circled them in the next picture. Using a flat head screw driver or credit card push these in one by one. As each one is pushed in, the top of the keyboard should lift slightly. Once all three of the clips have been pushed in, raise the top of the keyboard slightly and pull it towards the screen. This should allow the hooks at the bottom of the keyboard to come loose. Underneath, the keyboards wires go to the motherboard. It is fairly simple to release the catch on the cables clip on the motherboard, and free it form the netbook.img_4196Next you have to remove 6 screws that hold the casing together, they have been circled in the following picture. You also need to unclip and release the cable that goes from the touchpad to the motherboard.

Next part isn’t that nice. The top part of the casing clips into the bottom half with a series of clips around the edge. You need to stick your screwdriver or credit card in on one end and slowly work your way around the edge of the netbook unclipping it. Once they’re all unclipped you unhook the top parts from just below the screen hinges. You should now have the motherboard in full view.img_4200If you wish to remove the motherboard you must undo the two screws in the lower part of the image above. This will allow you to first remove the wifi card. You must also undo the clip that holds the SSD’s cable in place on the motherboard, and also unplug the pug that carries the wires to the screen in the top right of the screen. To make life easier you should also undo the two screws that keep a hook in place in the top left. This acts as part of the hinge mechanism and to hold the motherboard in place. Underneath the motherboard is another wire harness which carries wires to the board on the right of the laptop.

If you wish to install more/new RAM, this is quite easy, you need simply plug it in to the open slot on the underside of the motherboard.img_4201In this image you can just see where my two data wires solder onto the motherboard by the CPU. At the place there are two columns of solder points. The left column has 4 pins and the right column 5. On the left column the first point (ie the top point) is the Ground, the second point Data+, third point Data-, and fourth (bottom) point 5V+. In my picture I only used the data points.This image from the aforementioned Radio Shack shows the points better. This image from Tnkgrl shows the two power points I used for my Flash Drive, and also the other two Data points that can be used.

For the four points on the Flash Drive itself. Lying the flash drive down with the contacts on top, and to the right. In order from top to bottom, the contacts are: 5V+, Data-, Data+, Ground. I just stashed the flash drive to the right there,forwards of the SSD where there was some space. Because these are just standard USB ports they can be used to install any standard USB device. The guy at Radio Shack actually installed a tiny USB Hub into it, allow new additions to be installed relatively easily.