Answer to Question #301883 in Statistics and Probability for Dani

Question

7. An arithmetic test is given twice within a few days to a student. The highest possible score is 40. He receives a score of 35 the first time and a score of 18 the second time. If similarly varying results are obtained with other students, the test is probably:

A. lacking in relevance

B. unreliable

C. not sufficiently comprehensive

D. too difficult