For each of the following situations in california, indicate whether or not it is an example of price discrimination.

1. the weekend price of a hotel room is greater than the mid-week price.
2. stand-by passengers can fly at lower fares than passengers who buy e-tickets.
3. colleges charge out-of-state students a higher tuition than californian students.
4. a jeans store sells a second pair of jeans at 1 divided by 3 off.
5. an insurance company charges a higher insurance rate for a teenaged male than it charges for an adult male.
6. the price of water is higher for a car wash firm than it is for a farmer.
7. a smartphone service provider offers free calls on the weekend.
8. a railway company offers discounts to families traveling with young children.