Question

Five teachers were hired at Oakdale Middle School at the beginning of the 2005 school year. The performance of each teacher was rated by the principal at the conclusion of each school year. The performance ratings are charted below. Please use this information to answer the question.

Which teacher exhibited the most variable year-to-year performance over this 5 year span?

Jill


Ed


Ralph


Sam

Answer 1

Ralph

Explanation:

Ralph's data goes from 5 to 2 to 2 to 1 to 1. The spread of this data is larger than for any other teacher in the list.

Answer 2

Ed...................