Is an IQ of 87 about Average??

[A1Mikey]

.

[mollykins]

100 is bang on average but I think the 'average' quartile goes from 90 to 110.

[Prudie]

What do you mean by average - the mean of the UK population, world population? I thought the whole thing about IQ was that 100 was considered 'normal'.

[jackthehat]

If you require watering...............apparently it is !

http://wilderdom.com/...IQWhatScoresMean.html

[Prudie]

lol nice to see you back jack!

[ladyalex]

It's between 85 and 115....
Mean IQ in 100,
Standard deviation is 15
Average IQ is considered to be one standard deviation either side of the mean.

[ladyalex]

*mean IQ is 100*

[CovKid]

Re: Ladyalex. If SD is 15, roughly 2/3rds lie between 85 and 115, so 1 in 6 is above 115 and 1 in six below 85. I reckon less than 100 means "unreliable in intellectually challenging situations".