\subsection{\person{Weibulls} Distribution - Graphs} \begin{center} \begin{tabular}{p{5cm}|p{5cm}|p{5cm}} $shape = 0.5$ & $shape = 1$ & $shape = 2$ \\ \hline \multicolumn{3}{c}{\cellcolor{gray!50}\textbf{Weibull PDF} ($scale = 1$)} \\ \hline \begin{tikzpicture}[scale=0.6] \begin{axis}[ xmin=0, xmax=2, xlabel=$x$, ymin=0, ymax=1, ylabel=$y$, samples=400, axis y line=middle, axis x line=middle, ] \addplot+[mark=none] {0.5*x^(-0.5)*exp(-x^0.5)}; \end{axis} \end{tikzpicture} & \begin{tikzpicture}[scale=0.6] \begin{axis}[ xmin=0, xmax=2, xlabel=$x$, ymin=0, ymax=1, ylabel=$y$, samples=400, axis y line=middle, axis x line=middle, restrict y to domain=0:1, ] \addplot+[mark=none] {1/exp(x)}; \end{axis} \end{tikzpicture} & \begin{tikzpicture}[scale=0.6] \begin{axis}[ xmin=0, xmax=2, xlabel=$x$, ymin=0, ymax=1, ylabel=$y$, samples=400, axis y line=middle, axis x line=middle, ] \addplot+[mark=none] {2*x^(1)*exp(-x^2)}; \end{axis} \end{tikzpicture} \\ \hline \multicolumn{3}{c}{\cellcolor{gray!50}\textbf{Weibull CDF} ($scale = 1$)} \\ \hline \begin{tikzpicture}[scale=0.6] \begin{axis}[ xmin=0, xmax=2, xlabel=$x$, ymin=0, ymax=1, ylabel=$y$, samples=400, axis y line=middle, axis x line=middle, ] \addplot+[mark=none] {1-exp(-x^0.5)}; \end{axis} \end{tikzpicture} & \begin{tikzpicture}[scale=0.6] \begin{axis}[ xmin=0, xmax=2, xlabel=$x$, ymin=0, ymax=1, ylabel=$y$, samples=400, axis y line=middle, axis x line=middle, restrict y to domain=0:1, ] \addplot+[mark=none] {1-1/exp(x)}; \end{axis} \end{tikzpicture} & \begin{tikzpicture}[scale=0.6] \begin{axis}[ xmin=0, xmax=2, xlabel=$x$, ymin=0, ymax=1, ylabel=$y$, samples=400, axis y line=middle, axis x line=middle, ] \addplot+[mark=none] {1-exp(-x^2)}; \end{axis} \end{tikzpicture} \\ \hline \multicolumn{3}{c}{\cellcolor{gray!50}\textbf{Hazard function} $\left(h = \frac{\text{PDF}}{1-\text{CDF}}\right)$} \\ \hline \begin{tikzpicture}[scale=0.6] \begin{axis}[ xmin=0, xmax=2, xlabel=$x$, ymin=0, ymax=1, ylabel=$y$, samples=400, axis y line=middle, axis x line=middle, ] \addplot+[mark=none] {(0.5*x^(-0.5)*exp(-x^0.5))/(1-(1-exp(-x^0.5)))}; \end{axis} \end{tikzpicture} & \begin{tikzpicture}[scale=0.6] \begin{axis}[ xmin=0, xmax=2, xlabel=$x$, ymin=0, ymax=1, ylabel=$y$, samples=400, axis y line=middle, axis x line=middle, restrict y to domain=0:1, ] \addplot+[mark=none] {(1/exp(x))/(1-(1-1/exp(x)))}; \draw[blue] (axis cs: 0,1) -- (axis cs: 2,1); \end{axis} \end{tikzpicture} & \begin{tikzpicture}[scale=0.6] \begin{axis}[ xmin=0, xmax=2, xlabel=$x$, ymin=0, ymax=1, ylabel=$y$, samples=400, axis y line=middle, axis x line=middle, ] \addplot+[mark=none] {(2*x^(1)*exp(-x^2))/(1-(1-exp(-x^2)))}; \end{axis} \end{tikzpicture} \\ \hline \multicolumn{3}{c}{\cellcolor{gray!50}\textbf{Survival function} ($R = 1-\text{CDF}$)} \\ \hline \begin{tikzpicture}[scale=0.6] \begin{axis}[ xmin=0, xmax=2, xlabel=$x$, ymin=0, ymax=1, ylabel=$y$, samples=400, axis y line=middle, axis x line=middle, ] \addplot+[mark=none] {1-(1-exp(-x^0.5))}; \end{axis} \end{tikzpicture} & \begin{tikzpicture}[scale=0.6] \begin{axis}[ xmin=0, xmax=2, xlabel=$x$, ymin=0, ymax=1, ylabel=$y$, samples=400, axis y line=middle, axis x line=middle, restrict y to domain=0:1, ] \addplot+[mark=none] {1-(1-1/exp(x))}; \end{axis} \end{tikzpicture} & \begin{tikzpicture}[scale=0.6] \begin{axis}[ xmin=0, xmax=2, xlabel=$x$, ymin=0, ymax=1, ylabel=$y$, samples=400, axis y line=middle, axis x line=middle, ] \addplot+[mark=none] {1-(1-exp(-x^2))}; \end{axis} \end{tikzpicture} \\ \end{tabular} \end{center}