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Large Data Set


Although the Large Data Set is just a bunch of numbers, we can use the CG50 to familiarise ourselves with the data in the LDS.

To help you do this, we have cleaned up the data–removed blank or N/A rows–and cut it into pieces for upload into the calculator.

You can download a zipped folder containing all the individual CSV files from and then you must unzip the folder before you can load it into the CG50.

First, you must find the USB cable that came with your calculator or borrow someone else’s. If you can’t find the original, then you’ll need to buy a USB to mini-USB cable from your preferred supplier.

Next plug in the USB cable into a computer that you will use for the transfer and plug the smaller mini-USB end into the calculator.

As soon as it is plugged in then a window will appear that says Select Connection Mode.

Press to choose the USB Flash option and then a notice will appear on the calculator saying ‘Preparing USB’.

NB Until we get to the end of the process, DO NOT remove the cable from either your computer or the CG50. No good will come of this.

Once it has chugged through and communicated with your computer, the CG50 will behave exactly like any external drive on the PC. In particular, if it hasn’t popped open automatically, you should open a file explorer window showing the CG50 ‘drive’ and open the folder called @MainMem.

Next, open the folder inside @MainMem called SAVE-F and copy the LDS folder from your computer to the SAVE-F folder through copy/paste or drag-and-drop.

Wait until all the files have been completely copied over and close the CG50 window on your computer.

Then dismount or eject the CG50 USB drive from your computer.

The CG50 will do a little bit of housekeeping and then a message will display telling you that it’s done:

Press and disconnect the cable.

Now the LDS data is in your CG50 ready for use.

Note that you will not be able to use this data in the exam as it is excluded when you go into exam mode, but you can use it to investigate the data through simple inspection in the module or to draw histograms, box plots, scatter graphs etc.

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