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 Post subject: Choose the mode?Posted: Wed Aug 06, 2008 9:35 am

Joined: Tue Jul 29, 2008 12:11 pm
Posts: 16
Hi, can anybody tell me what 'choose the mode' means please? I can't believe how difficult the 11+ questions are! Thanks

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 Post subject: Posted: Wed Aug 06, 2008 9:40 am

Joined: Fri Jan 25, 2008 10:18 pm
Posts: 273
Are you able to post the whole question?

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 Post subject: Posted: Wed Aug 06, 2008 10:35 am

Joined: Mon Aug 13, 2007 10:47 am
Posts: 3310
Location: Warwickshire.
The mode is a useful type of average as it tells you the number that occurs the most in a set of numbers.

e.g. The mode of {1, 2, 4, 4, 5, 8, 9} is 4 as it occurs the most.

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 Post subject: Posted: Wed Aug 06, 2008 12:36 pm

Joined: Tue Jul 29, 2008 12:11 pm
Posts: 16
Thank you both for replying, it was a long question regarding train arrival times in the demo for the tutors maths cd - I had never heard of it. Thanks - I shall come out the other end of this 11+ more knowledgeable!

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 Post subject: Posted: Wed Aug 06, 2008 1:46 pm

Joined: Mon Aug 13, 2007 10:47 am
Posts: 3310
Location: Warwickshire.
I think most of us do!!!
Pleased to help.

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 Post subject: Posted: Thu Aug 07, 2008 9:19 am

Joined: Thu Jan 12, 2006 3:29 pm
Posts: 625
Hi hertsmum

Another average that can appear is the median.

This is the number in the middle when the numbers are placed in order.

If there are two middle numbers, in an even set, then the median is the mean of the two numbers.

In EdÂ´s mums example the median would be 4.

For questions asking for the mode, there can be more than on mode in a set e.g.

1 1 1 2 3 4 5 5 5 6

Both 1 and 5 are the modes for this set.

Regards

Mike

_________________
Mike Edwards is a co-author of The Tutors product range.

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 Post subject: Posted: Thu Aug 07, 2008 9:46 am

Joined: Mon Feb 12, 2007 1:21 pm
Posts: 13993
However you need to be aware that, in the above example, some books would say there is no mode ... However I would say it is bi-modal.

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 Post subject: Posted: Mon Aug 11, 2008 6:21 am

Joined: Tue Jul 29, 2008 12:11 pm
Posts: 16
Thanks for your help and clear explainations. Glad it's not me taking the tests....!

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 Post subject: Posted: Mon Aug 11, 2008 3:26 pm

Joined: Thu Jan 12, 2006 3:29 pm
Posts: 625
Hi hertsmom

You raise an interesting point here that may be worth considering as a different topic.

It is argued that bright parents have bright kids.

So why shouldn't parents sit an entrance test as well as the children.

After all it is the parents and the system that puts children under so much pressure to pass the tests, why shouldn't parents also be put under some pressure as well?

Regards

Mike

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 Post subject: Posted: Mon Aug 11, 2008 3:55 pm

Joined: Tue Jul 29, 2008 12:11 pm
Posts: 16
I wouldn't mind! I am really enjoying tutoring my son, it is great fun using my brain again! I actually got an A+ in my 11+ (shows how long ago that was) and my parents sent me to the shiny new local faith comp. when I could have strolled into the really high ranking local grammer. By the time I had slipped in with a bad lot (like the sheep I am..) it was too late and they couldn't persuade the grammer school to accept me. That is why I am giving my son the option, but yes, that would be fun for the parents to take a test alongside the children and feel the pressure - published results in the local paper alonside which school WOULD have accepted us should complete the pressure

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