A normalized probability distribution curve has an area under the curve of 1.
Note: I said "normalized", not "normal". Do not confuse the terms.
The total area of any probability distribution is 1
The number 1. The area of any probability distribution equals 1.
The probability is the ratio of the area of the shaded area to the area of the whole figure.
name two area where probability is used
Yes. The total area under any probability distribution curve is always the probability of all possible outcomes - which is 1.
force over area=pressure
there is a even chance that a earthquake will hit the same area again.