Of the Last 400 Customers Entering a Supermarket, 20 Have

Short Answer

Of the last 400 customers entering a supermarket, 20 have purchased a mobile phone. If the classical approach for assigning probabilities is used, the probability that the next customer will purchase a mobile phone is: $\begin{array}{|l|l|}\hline \text { A. } & 0.80 \\\hline \text { B. } & 0.20 \\\hline \text { C. } & 0.05 \\\hline \text { D. } & 0.50 . \\\hline\end{array}$