A Statistics Professor Finds That When He Schedules an Office

question 91

Multiple Choice

A statistics professor finds that when he schedules an office hour at the 10:30 a.m. time slot, an average of three students arrives. Use the Poisson distribution to find the probability that in a randomly selected office hour no
Students will arrive.

• A)0.0498
• B)0.1225
• C)0.1108
• D)0.0743

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Definitions:

Regression Toward the Mean

A statistical phenomenon wherein extreme scores on one occasion tend to be closer to the average on subsequent testing.

Illusory Correlation

A cognitive bias where people falsely perceive an association between two unrelated events or variables.

Random Assignment

A procedure in experimental designs that ensures each participant has an equal chance of being placed into any group, reducing biases.

Central Tendency

A statistical measure that identifies a single value as representative of an entire distribution of data, often using the mean, median, or mode.