The Number of Cars Waiting at a Certain Residential Neighborhood

question 58

Multiple Choice

The number of cars waiting at a certain residential neighborhood stoplight is observed at 6:00 a.m. on 160 different days. The observed sample frequencies are shown here: $$\begin{array} { | l | r | r | r | r | } \hline \text { Number of cars waiting } & 0 & 1 & 2 & 3 \\\hline 60 & 60 & 50 & 30 & 20 \\\hline\end{array}$$ Under the null hypothesis of a uniform distribution, the expected number of days we would see 0 cars is:

• A)10.
• B)20.
• C)30.
• D)40.

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Definitions:

Milgram Experiment

A psychological experiment conducted by Stanley Milgram in the 1960s to study obedience to authority, where participants were instructed to administer electric shocks to another person.

Stanford University Prison Experiment

A psychological study conducted by Philip Zimbardo in 1971 at Stanford University, where students were assigned roles of prisoners and guards to explore the effects of perceived power.

Generalization

Drawing a conclusion about a certain characteristic of a population based on a sample from it.

Logical Support

The provision of reasons or evidence to justify a claim or argument.