tex">S(t)</script> is the probability that the event of interest has not occurred by some time <script type="math/tex">t</script>
<script type="math/tex; mode=display">\begin{equation*}
S(t) = 1 - F(t) = \text{Pr} \left[ T \geq t\right]
\end{equation*}</script>
</p>
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<p><strong>Example:</strong>
Here, we will consider the example of <a href="tutorials/churn.html">churn modeling</a>, assume that the event of interest is <code>stopping the SaaS subscription</code> and analyze the survival function of