Blood Type Compatibility. Your ABO blood type is based on the presence or absence of the A and B antigens on your red blood cells. The A blood type has only the A antigen and the B blood type has only the B antigen. The AB blood type has both A and B antigens, and the O blood type has neither A nor B antigen.
Green Triangle. The green triangle appears in the upper left hand corner of a cell when there is an error in a formula. Sometimes Excel will report an error when you use text in a box and the program believes it is part of a formula. When you click on the green triangle there will be a yellow box that looks like a road sign with an exclamation point in it. This button is the Trace Error option that will help you correct your formula.
The first thing to do is layout our data. For this example I used the following data: The things to pay attention to in the data set are: 1  The X (horizontal) axis label is offset to the left of the first column of data to let Excel know that this column is the x-axis and not another data set.2  The second column, âHidden Baseâ and the last column, âBottomâ are the same data. The X (horizontal) axis label is offset to the left of the first column of data to let Excel know that this column is the x-axis and not another data set. 2  The second column, âHidden Baseâ and the last column, âBottomâ are the same data. 3  I actually used =C2, =C3, etcâ¦ for column F.