Mutiple Choice Help

Question

 According to the National Center for Education Statistics (2000), only 5% of United States eighth graders score above 653 on a mathematics assessment test. If an eighth grader is selected at random, what is the probability that he or she has a score of 653 or below on the mathematics assessment test?

 

a. 33

b. 3.256

c. 0.90

d. none of these

Answer 1

If 5% are above 653, then 95% are at or below 653.  So the correct answer must be d, 'none of the above.'