![]() Take note, that the problem asks us to get the value to the RIGHT. The corresponding value is 0.8749, meaning it covers 0.8749 out of 1 of the curve to the LEFT. See the picture for the finding of the value. In this problem, the given z-score is 1.15, so using the z-table we must first look for 1.1 at the left-most column and then 0.05 at the top-most row. I have attached two pictures of z-tables that get the area to the LEFT. Take note, that some z-tables may give you the area to the LEFT or area to the RIGHT, always be mindful in checking that. ![]() This would be the corresponding area under the curve. ![]() ![]() Locate the first value at the left-most column and the second value on the top-most row and see where they meet in the table. A z-table allows us to determine the area under a standard distribution curve given the z-score.īreak up the z-score into the ones + tenths and hundredths place value. In order to determine this, it is mandatory to make use of the z-table. ![]()
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