The question is not influenced by the fact that it's about intelligence - standard deviation is a way of describing data and it's the same for all kinds of data.
So in general, one standard deviation away from the mean in both directions encompases around 66% of the cases - so here it would be 66% of children.
Additionally, 95% of all children should lie withing two standard deviations - so two standard deviations below or above the average.
A trademark is a sign, symbol, name, or short phrase that indicates the source of a product or service.
Answer:
The two type of electronic components are Active components and passive components
Active components are parts of a circuit that rely on an external power source to control or modify electrical signals. ... - Passive components like resistors, transformers, and diodes don't need an external power source to function. These components use some other property to control the electrical signal.
Answer:It rearranges the files on a hard drive to get quicker access to them.