An Instructor Decides to Weight the Scores on Three Tests

question 71

Short Answer

An instructor decides to weight the scores on three tests differently. The first test is weighted only half as much as the second test. The third test is the final and it is weighted twice as much as the second test. The mean grade on the first test was 68, the mean of the second test was 75, and the mean on the third test was 80. What is the mean grade for all three tests, assuming the same number of students took all the exams?

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Definitions:

Primary Causes

The main or direct factors leading to an event or condition.

Intellectual Disability

A condition characterized by significant limitations in both intellectual functioning and in adaptive behavior, which covers many everyday social and practical skills.

Adaptive Functioning

A person's ability to manage their everyday tasks and live independently, often used as an indicator of their intellectual and developmental capabilities.

IQ Test

A standardized test designed to measure human intelligence and cognitive abilities in relation to an age group.