Find the Cardinal Number of the Indicated Set $\mathrm { n } ( \mathrm { A } ) = 7 , \mathrm { n } ( \mathrm { B } ) = 15$

question 236

Multiple Choice

Find the cardinal number of the indicated set. Use the cardinal number formula.
-If $\mathrm { n } ( \mathrm { A } ) = 7 , \mathrm { n } ( \mathrm { B } ) = 15$ and $\mathrm { n } ( \mathrm { A } \cap \mathrm { B } ) = 5$ , what is $\mathrm { n } ( \mathrm { A } \cup \mathrm { B } )$ ?

• A) 16
• B) 18
• C) 22
• D) 17

Understand the concept of trait visibility and its impact on the accuracy of personality judgment.

Grasp the concept of the acquaintanceship effect and its limitations in personality judgment accuracy.

Recognize the role of gender differences in the accuracy of personality judgments.

Understand the complexity of the 'good judge' of personality and the variables that affect judgment accuracy.

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Definitions:

Mistakes

Erroneous actions or decisions due to judgment errors, lack of information, or misunderstandings, often serving as a basis for learning and improvement.

Increase Helping Behavior

Strategies or actions taken to enhance the willingness or frequency of people aiding others in need.

Influence Thinking

The act of affecting or altering someone's thought processes, decision-making, or beliefs through various means.

Promote Communication

To encourage or facilitate the exchange of information or ideas between people.