what is a vertical point & confidence graph called what is this horizontal confidence graph called? what is a horizontal graph called what is the red line in a population data graph what is the point & confidence graph in statistics called what is this horizontal point and confidence graph called? what is the type of graph that represents the actual population mean? what is the point & confidence graph called what is the graph with a red line? what is the horizontal confidence interval on the graph what is horizontal point & confidence graph? what is horizontal point graphs what is a graph called what is this horizontal confidence graph called what are the horizontal points in a point and confidence graph called what is the graph in r called what is the horizontal graph called what's the graph on the red line? what is the horizontal confidence interval which graph represents a point estimate?