$$In the context of describing data numerically using a graphing calculator, what is the correct term for a pattern of variation that is noted in a given data set?$$

• A. $\mathrm{Median}$
• B. $\mathrm{Trend}$
• C. $\mathrm{Outlier}$
• D. $\mathrm{Frequency}$

Answer: (B)

Verified step by step guidance

1. Understand that the problem is asking for the term used to describe a pattern of variation observed in a data set when analyzing it numerically or graphically.
2. Recall that 'Median' refers to the middle value in an ordered data set, which is a measure of central tendency, not a pattern of variation.
3. Recognize that an 'Outlier' is a data point that is significantly different from other observations, not a pattern but an anomaly.
4. Know that 'Frequency' refers to how often a particular value or range of values occurs in the data, which describes distribution but not a pattern of variation over time or sequence.
5. Identify that a 'Trend' is the term used to describe a general direction or pattern of variation in data, such as increasing, decreasing, or cyclical behavior, which fits the description given.