Brian's Team Just Had a Research Breakthrough

question 54

Multiple Choice

Brian's team just had a research breakthrough. They'll need several thousands of dollars to complete the project. Brian has called a series of meetings in which he's promoting the significance of the new discovery, explaining the economic benefits that will result from the final project, and answering questions. Brian is a(n) ________ within his company.

• A) change agent
• B) arbitrator
• C) manipulator
• D) idea champion
• E) stress creator

---

Definitions:

Standard Deviation

An index quantifying the spread or variability among a collection of numbers, where a smaller standard deviation suggests the numbers are closely clustered around the average.

Tchebysheff's Theorem

A statistical theorem stating that, for any real-valued random variable, the proportion of values lying within k standard deviations from the mean is at least 1-1/k^2, for k > 1.

Empirical Rule

A statistical guideline suggesting that within a normal distribution, nearly every data point can be found within three standard deviations of the central mean.

Stem-And-Leaf Plot

A graphical method for displaying quantitative data, where each number is split into a "stem" (the leading digit(s)) and a "leaf" (the last digit).