Use Random-Variable Notation to Represent the Event Use Random-Variable Notation to Represent the Event That the Student

question 120

Multiple Choice

Use random-variable notation to represent the event.
-The following table displays a frequency distribution for the number of siblings for students in one middle school. For a randomly selected student in the school, let X denote the number of siblings of
The student. $\begin{array}{r|rrrrrrrr}\text { Number of siblings } & 0 & 1 & 2 & 3 & 4 & 5 & 6 & 7 \\\hline \text { Frequency } & 189 & 245 & 102 & 42 & 24 & 13 & 5 & 2\end{array}$

Use random-variable notation to represent the event that the student obtained has fewer than two siblings.

• A)\(\{ X \leq 2 \}\)
• B) \(\{ X < 2 \}\)
• C) \(\{ 0,1 \}\)
• D) \(P \{ X < 2 \}\)

Distinguish between different types of relationships (e.g., business friendships, intimate friendships) within professional settings.

Understand the concept and importance of relationship marketing.

Identify the factors determining the frequency of sales calls and account visits.

Recognize measures used to assess account penetration and its significance.

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Definitions:

Cross-Sectional

A type of observational study design that analyzes data from a population, or a representative subset, at a specific point in time.

Longitudinal

Studies or research conducted over a long period of time to observe changes.

Occupational Achievement

The attainment of significant milestones or success within one's chosen career or professional path.

Feminine Social

Refers to the social construction and aspects of femininity, including roles, behaviors, and expectations dictated by society regarding what it means to be feminine.