Choose the mode?

11 Plus Maths – Preparation and Information

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hertsmom
Posts: 16
Joined: Tue Jul 29, 2008 1:11 pm

Choose the mode?

Post by hertsmom »

Hi, can anybody tell me what 'choose the mode' means please? I can't believe how difficult the 11+ questions are! Thanks
coolmum123
Posts: 271
Joined: Fri Jan 25, 2008 11:18 pm

Post by coolmum123 »

Are you able to post the whole question?
Ed's mum
Posts: 3310
Joined: Mon Aug 13, 2007 11:47 am
Location: Warwickshire.

Post by Ed's mum »

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.
hertsmom
Posts: 16
Joined: Tue Jul 29, 2008 1:11 pm

Post by hertsmom »

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!
Ed's mum
Posts: 3310
Joined: Mon Aug 13, 2007 11:47 am
Location: Warwickshire.

Post by Ed's mum »

I think most of us do!!!
Pleased to help.
:mrgreen:
Mike
Posts: 625
Joined: Thu Jan 12, 2006 4:29 pm

Post by Mike »

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 Ed´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.
Guest55
Posts: 16254
Joined: Mon Feb 12, 2007 2:21 pm

Post by Guest55 »

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.
hertsmom
Posts: 16
Joined: Tue Jul 29, 2008 1:11 pm

Post by hertsmom »

Thanks for your help and clear explainations. Glad it's not me taking the tests....! :?
Mike
Posts: 625
Joined: Thu Jan 12, 2006 4:29 pm

Post by Mike »

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
hertsmom
Posts: 16
Joined: Tue Jul 29, 2008 1:11 pm

Post by hertsmom »

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 :twisted:
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