Question

A certain curve (that is NOT the normal curve) is shown below. The curve is symmetric around 0, and the total area under the curve is 100%. The area between -1 and 1 is 58%.

What is the area to the right of 1?

I do not know how to do this because it is not a normal curve so I don't know how to find the area to the right of 1.

Answer 1

symmetric around zero means the the two sides are the same shape

zero is midway between -1 and 1

42% of the area is outside the -1 to 1 zone
... 21% on either side (symmetric)

so the area to the right of 1 is 21%