A Population of Flights Can Be Classified According to Two

Multiple Choice

A population of flights can be classified according to two factors: duration (short, medium, or long) and purpose (vacation or business) . We are interested in whether either of these factors has an effect on price. The table below gives mean prices for a balanced population. The average price for short flights is:

A) $400.
B) $300.
C) $200.
D) None of the answer options is correct.