Answer:
[tex]\frac{4}{9}[/tex]
Step-by-step explanation:
There are 3 types of vacation and 3 lengths of time.
Only ski resorts have snow so the probibility of no snow is [tex]\frac{2}{3}[/tex]
The probability of at least 6 days is [tex]\frac{2}{3}[/tex], multiply the two displayed numbers to get:
[tex](\frac{2}{3})^2\\ =\frac{2}{3}*\frac{2}{3} \\=\frac{4}{9}[/tex]
