Find the area under the normal distribution curve between z = –0.10 and z = 3.20.
http://davidmlane.com/hyperstat/z_table.html
To find the area under the normal distribution curve between two points, z1 and z2, you'll need to use a standard normal distribution table or a statistical calculator. The standard normal distribution table provides probabilities associated with different z-scores.
Here are the steps to find the area under the normal distribution curve between z = -0.10 and z = 3.20:
1. Look up the probability associated with z = -0.10 in the standard normal distribution table. This will give you the probability for the area to the left of z = -0.10.
2. Look up the probability associated with z = 3.20 in the standard normal distribution table. This will give you the probability for the area to the left of z = 3.20.
3. Subtract the probability from step 1 from the probability from step 2 to find the area between z = -0.10 and z = 3.20. This represents the area under the normal distribution curve between those two points.
Keep in mind that some standard normal distribution tables provide probabilities for the area to the right of the z-score instead of the left side. In that case, you would need to subtract the probability from step 2 from the probability from step 1 instead of subtracting step 1 from step 2.
If you're using a statistical calculator, you can input the values for z1 and z2 and use the appropriate function to find the area between those two points. The function name may vary depending on the calculator or software you're using, but commonly used functions include "normalcdf" or "normcdf".