A single curve cannot touch "each other" since "each other" implies two curves.
They can, so the question is irrelevant.
The domain of the Normal distribution is the whole of the real line. As a result the horizontal axis is asymptotic to the Normal distribution curve. The curve gets closer and closer to the axis but never, ever reaches it.
because it is imposible
This is because the normal distribution has a domain that extends to infinity in both directions.
Tangent to the curve.
no
I have the Blackberry Curve 9320 and it is NOT a touch screen.
No. Sorry!
What is MPN product description for an ipod touch?
Well it depends which one you get, the newest one is-9900 and I have a feeling the 9790 is.
The tangency condition refers to the point where a curve and a straight line touch each other without crossing. At this point, the curve and the line have the same slope. This affects the behavior of the curve at the point of tangency by creating a smooth transition between the curve and the line, without any abrupt changes in direction.
No, it is not normal. iTunes should be recognizing your iPod Touch as an iPod Touch, not an iPhone.