Echocardiogram - Echo. 1  Problems with the outer lining of your heart (the pericardium). 2  Problems with the large blood vessels that enter and leave the heart. 3  Blood clots in the chambers of your heart. 4  Abnormal holes between the chambers of the heart.
(3) Select the smallest observed value as the lower limit of the first class (e.g. the left hand value for the first class), and add multiples of the class width from step (2) to obtain the lower limits for each class. So in the black bear case, the lower class limits would be. 16.0, 26.2, 36.4, 46.6, , 107.8. (4) Find the upper class limits (the right hand value for each class) by adding the class width to the lower class limits and subtracting from this the smallest significant digit in the observations.
Restrict data entry to a decimal number within limits. 1  Follow steps 1-3 in Add data validation to a cell or a range above. 2  In the Allow box, select Decimal. 3  In the Data box, select the type of restriction that you want.  Enter the minimum, maximum, or specific value to allow.