Solve the Problem What Is the Probability That a Student Has at Most

question 22

Multiple Choice

Solve the problem.
-In a survey about the number of siblings of college students, the following probability table was constructed: $$\begin{array} { c | c } \text { Number of Siblings } & \text { Probability } \\\hline 0 & 0.27 \\\hline 1 & 0.31 \\\hline 2 & 0.20 \\\hline 3 & 0.13 \\\hline 4 \text { or more } & 0.09\end{array}$$ What is the probability that a student has at most 2 siblings?

• A) 0.58
• B) 0.42
• C) 0.78
• D) 0.22

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Definitions:

Asperger's Syndrome

A developmental disorder affecting ability to effectively socialize and communicate, considered to be part of the autism spectrum.

Autism

A developmental disorder characterized by challenges with social skills, repetitive behaviors, speech and nonverbal communication.

Social Skills

The abilities necessary to interact positively and effectively with others in social settings, including communication, empathy, and conflict resolution.

Neurodevelopmental Disorder

A group of conditions that manifest early in development, leading to impairments in personal, social, academic, or occupational functioning.