Which statement about the graphs is true? Graph A is a valid density curve because the part of
the graph from 2 to 6 is below the horizontal axis.
O Graph A is not a valid density curve because the
part of the graph from 1 to 2 is above the horizontal
axis.
Graph B is not a valid density curve because part of
the horizontal axis has negative values.
Graph B is a valid density curve because the curve
is above the horizontal axis, and the area under the
curve is 1.