Question

The following table shows the results of a survey of thousand customers who bought a new or used cars of a certain model

Type/ Satisfaction level	Satisfied	Not Satisfied
New	$300$	$100$
Used	$450$	$150$

If a customer is selected at random, what is the probability that the customer bought an used car but not satisfied

• A. $\frac{3}{20}$
• B. $\frac{2}{20}$
• C. $\frac{5}{20}$
• D. None of these

Answer 1

The correct option is A $\frac{3}{20}$

$P$(used car not satisfied) $=\frac{150}{1000}=\frac{3}{20}$