21.   The annuity yield curve is a plot of annuity yields against term to maturity.

22.   The rolling yield curve is a plot of rolling yields against term to maturity.

23.   The yield curve is a smooth curve through those points.

24.   The resulting curve depends on the order of the polynomial N.

25.   If N is too high, the curve will not be sufficiently smooth.

26.   If N is too low, the curve will be under-fitted.

27.   A logistic curve is one in which the rate of increase of a population is a function of the size of the initial population.

28.   If the universal calibration curve is valid for the system then where the subscripts s and u denote the standard calibration and the polymer under study, respectively.

29.   Curve BT is the melting temperature curve.

30.   Curves were similar for all metals except iron, which had much higher contamination values even after five collections.