Here are some popular types of graphs and charts: 1  Some of the basic graphs used for categorical data include pie charts and bar graphs, which break down how many responses were given for each group of certain variables, such as gender or which applications are used on teensâ cellphones. An example of a bar graph.
The Electricity Section oversees the regulation of investor-owned electric utilities in Alabama. Only one electric utility, Alabama Power Co., falls under the PSC's regulatory authority, as cooperatives and municipal systems are exempt from state regulation. Additionally, the PSC does not regulate wholesale power generators or the Tennessee Valley Authority (TVA).
Roosevelt signed the Tennessee Valley Authority Act on May 18, 1933. The TVA Act established the Tennessee Valley Authority. The TVA is one of the New Dealâs so-called âalphabet agenciesâ (others include the WPA and the CCC). The initial role of these agencies was to administer FDRâs federal New Deal programs.