The Manager of a Bank Recorded the Amount of Time

question 15

Multiple Choice

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. $\begin{array}{|l|l|}\hline \begin{array}{l}\text { Waiting Time } \\\text { (minutes) }\end{array} & \begin{array}{l}\text { Number of } \\\text { Customers }\end{array} \\\hline 0-3 & 9 \\\hline 4-7 & 10 \\\hline 8-11 & 12 \\\hline 12-15 & 4 \\\hline 16-19 & 4 \\\hline 20-23 & 2 \\\hline 24-27 & 2 \\\hline\end{array}$

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) \(0.558\)
• B) \(0.651\)
• C) \(0.093\)
• D) \(0.727\)

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Definitions:

Cell Types

Distinct forms that cells take on within an organism, characterized by their specific structure, function, and biochemical properties.

Unique Functions

Distinctive roles or activities performed by particular biological entities or structures not shared with others.

Catabolite Activator Protein

A protein that binds to DNA and stimulates the transcription of certain genes in bacteria, especially in the presence of specific sugars.

Promoter Region

The promoter region is a sequence of DNA that initiates transcription of a particular gene, essential for gene expression regulation.