1. A radio station offers free competitions. Normally, one in every twenty contestants wins the free competition. What is the probability of losing the free competition?
A. 1/20
B. 1/19
C. 19/20
D. 19/1
E. 20/19
The correct answer is C.
The probablility of success is represented by the fraction 1/20.
The probability of losing is therefore:
20/20 - 1/20 = 19/20
NOTE: Fractions are slightly different than ratios.