[Informatics] How many records for a data set?

[Vera Cook]

True I have said min of 100 as it is more difficult to collect data in a smaller country town some students are using more

From: informatics-bounces at edulists.com.au [mailto:informatics-bounces at edulists.com.au] On Behalf Of Roland Gesthuizen
Sent: Thursday, 12 May 2016 8:11 AM
To: Year 12 VCE Informatics Teachers' Mailing List
Subject: Re: [Informatics] How many records for a data set?

I have been 'pushing / insisting / hinting / arm-waving' for at least 200 data points. Anything less could be a form of statistical torture upon the data analysis.

Sent from my iPhone

On 12 May 2016, at 7:39 AM, Russo, Frank R <Russo.Frank.R at edumail.vic.gov.au<mailto:Russo.Frank.R at edumail.vic.gov.au>> wrote:
Hi Scott and Group

It would be hard to put an exact number on it?
I would assume enough data to support and otherwise their hypothesis, a critical part is depending on their topic how much data is available?
The students have to choose but I have led my students toward things they have come up with and where they could find the data.
Interesting to see what the rest of the group thinks?

Frank

Frank Russo
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From: informatics-bounces at edulists.com.au<mailto:informatics-bounces at edulists.com.au> [mailto:informatics-bounces at edulists.com.au] On Behalf Of McCleary Scott
Sent: Wednesday, 11 May 2016 9:57 PM
To: 'Year 12 VCE Informatics Teachers' Mailing List'
Subject: Re: [Informatics] How many records for a data set?

Didn’t get a reply so though I’d try again.

How may records are people suggesting that students collect for their data?  What is a reasonable number to be able to manipulate and base a conclusion on?

Thanks,

Scott

From: informatics-bounces at edulists.com.au<mailto:informatics-bounces at edulists.com.au> [mailto:informatics-bounces at edulists.com.au] On Behalf Of McCleary Scott
Sent: Wednesday, 4 May 2016 8:50 PM
To: 'Year 12 VCE Informatics Teachers' Mailing List'
Subject: [Informatics] How many records for a data set?

Apologies if this has already been answered somewhere but I’m just wondering what sort of numbers of records students should be looking at for each data set?

i.e. how many unique pieces of data in each set?

Thanks,

Scott McCleary
John Paul College
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