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:
A)0.80.
B)0.20.
C)0.05.
D)0.50.

Question

Quizplus · Accepted Answer

The classical approach to probability involves dividing the number of favorable outcomes by the total number of outcomes. Here, 20 out of 400 customers purchased a mobile phone, so the probability is 20/400 = 0.05.

Of the Last 400 Customers Entering a Supermarket, 20 Have