Students Participating in an Experiment Attended Several Lectures on a Subject

question 83

Multiple Choice

Students participating in an experiment attended several lectures on a subject. Every month for a year after that, the students were tested to see how much of the material they remembered. The average scores for the group are given by the human memory model $f ( t ) = 80 - \log _ { 10 } ( t + 1 ) ^ { 12 } , 0 \leq t \leq 12$ where t is the time in months. Find the average score for the group after 11 months. Round your answer to three decimal places.

• A) \(67.05\)
• B) \(67.503\)
• C) \(78.921\)
• D) \(77.505\)
• E) \(78.373\)

---

Definitions:

Categorical Variable

A variable with categorical data.

Dummy Variables

Variables used in regression analysis to represent categorical data by converting it into a series of binary values.

Levels

The different values or categories that a factor can have in an experiment or statistical model.

Multiple Coefficient

A term that does not have a standard definition in statistics or mathematics and may be confused with terms like "multiple correlation coefficient" or "multiple coefficients in regression analysis". NO.