High School

Thank you for visiting In a cafe a customer orders one drink The probability that he orders tea is 0 42 and the probability that he orders coffee is. This page is designed to guide you through key points and clear explanations related to the topic at hand. We aim to make your learning experience smooth, insightful, and informative. Dive in and discover the answers you're looking for!

In a cafe, a customer orders one drink. The probability that he orders tea is 0.42, and the probability that he orders coffee is 0.3.

Work out the probability that he orders either tea or coffee.

Answer :

For any given set of probabilities, the total is always 100% or 1.0. (i.e. We know he ordered SOMETHING, so all the choices have to be accounted for.)

[tex]P_{total} = 1.0 = P_{tea} + P_{coffee} + P_{neither}[/tex]
[tex]1.0=0.42+0.3+P_{neither}[/tex]
[tex]P_{neither}= 1.0 - 0.72 = 0.28[/tex]

Thank you for reading the article In a cafe a customer orders one drink The probability that he orders tea is 0 42 and the probability that he orders coffee is. We hope the information provided is useful and helps you understand this topic better. Feel free to explore more helpful content on our website!

Rewritten by : Jeany