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The area is 0.008894
The area under the normal curve is ALWAYS 1.
You need to determine the area under the curve between the values in question. This is easy to do because there are tables that give the area values.
the standard normal curve 2
The area under the standard normal curve is 1.
What is the area under the normal curve between z=0.0 and z=1.79?
The area is 0.9270, approx.
The Normal curve is a graph of the probability density function of the standard normal distribution and, as is the case with any continuous random variable (RV), the probability that the RV takes a value in a given range is given by the integral of the function between the two limits. In other words, it is the area under the curve between those two values.
1 sigma does not represent 68.8 percent of anything.The area under the standard normal curve, between -0.5 and +0.5, that i, the central 1 sigma, is equal to 0.68269 or 68.3%.
What is the area under the normal curve between z equals 0.0 and z equals 2.0?