Consider a Population of 900 Values That Are Normally Distributed

question 40

Multiple Choice

Consider a population of 900 values that are normally distributed with a mean of 90 and standard deviation of 6. Which value below is closest to the IQR?

• A) 8.1
• B) 8.3
• C) 8.5
• D) 8.7

---

Definitions:

Independent Event

An independent event is an event whose outcome is not influenced by the outcome of another event; in probability, this means that the occurrence of one event does not change the probability of another.

Standardized Z Values

Values resulting from the standardization process that measures the number of standard deviations a data point is from the mean of its distribution.

Probability

An evaluation of event occurrence likelihood, represented as a numerical value ranging between 0 and 1.

Standard Normal Table

A reference table that provides the area under the curve of the standard normal distribution, often used to find probabilities and critical values.