To be eligible to open a Scottrade BankÂ® account, you must have $500 in equity* in one of the following ScottradeÂ® brokerage account types: 1  Individual. 2  Joint. 3  Trust. 4  Traditional IRA. 5  Roth IRA. 6  SEP IRA.
Summary: The range of a set of data is the difference between the highest and lowest values in the set. To find the range, first order the data from least to greatest. Then subtract the smallest value from the largest value in the set.
Seven intervals on the real line and the corresponding seven-vertex interval graph. In graph theory, an interval graph is the intersection graph of a family of intervals on the real line. It has one vertex for each interval in the family, and an edge between every pair of vertices corresponding to intervals that intersect.