Answer: Mechanical machines that use liquids to move.
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.
<h2>"<lastmod>" is the right choice for the given scenario</h2>
Explanation:
<update> This tag does not belong to <URL> tag of the site map. Hence this option goes invalid.
<lastmod> This gives details of the date and time when the website content was changed. It will be in "W3C Date time format". This may omit time at times. This is the write answer.
<loc> This contains the URL of the web page.
<changefreq>: How frequently the "web page is likely to get modified". The values which it accepts are: "monthly, always
, daily
, weekly
,hourly, yearly
, never"
Answer = GUI (Graphical User Interface)
