Determine Whether the Events Are Mutually Exclusive If We Randomly Select One of the Customers Represented in a Bank

question 117

Multiple Choice

Determine whether the events are mutually exclusive.
-The manager of a bank recorded the amount of time each customer spent waiting in line during peak business hours one Monday. The frequency table below summarizes the results. $$\begin{array}{l}\begin{array} { r | r } \text { Waiting Time}&\text{Number of }\\\text { (minutes) }&\text{ Customers } \\\hline 0 - 3 & 13 \\4 - 7 & 10 \\8 - 11 & 11 \\12 - 15 & 5 \\16 - 19 & 4 \\20 - 23 & 2 \\24 - 27 & 3\end{array}\end{array}$$ If we randomly select one of the customers represented in the table, what is the probability that the waiting time is at least 12 minutes or between 8 and 15 minutes?

• A)0.727
• B)0.104
• C)0.521
• D)0.625

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Definitions:

Customer Opinions

Feedback and perspectives from users or buyers about a product or service, typically used to improve offerings or understand market needs.

Competitive Advantages

Competitive advantages are factors or attributes that allow a company to outperform its competitors, such as superior quality, brand reputation, or cost efficiency.

Value Chain

A model that outlines the series of steps a company takes to create and deliver a product or service to the market, adding value at each stage.

Buying Criteria

The set of attributes or characteristics that consumers consider when deciding to purchase a product or service, such as price, quality, and brand reputation.