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: $\begin{array}{|l|l|}
\hline \text { A. } & 0.80 \
\hline \text { B. } & 0.20 \
\hline \text { C. } & 0.05 \
\hline \text { D. } & 0.50 . \
\hline
\end{array}$

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The Answer of 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: $\begin{array}{|l|l|}
\hline \text { A. } & 0.80 \
\hline \text { B. } & 0.20 \
\hline \text { C. } & 0.05 \
\hline \text { D. } & 0.50 . \
\hline
\end{array}$

Of the Last 400 Customers Entering a Supermarket, 20 Have