3. graham uses a hot water bottle on an injury
to his back he incurred playing basketball.
he fills the bottle with water that is a
temperature of 100°f. after 25 minutes,
graham finds that the bottle has cooled and
he stops using it.

Apsychology student wishes to investigate differences in political opinions between business majors and political science majors at her college. she randomly selects 100 students from the 260 business majors and 100 students from the 180 political science majors. does this sampling plan result in a simple random sample? why or why not? no, because each group of 200 students in the sample does not have the same chance of being selected. yes, because each group of 200 students in the sample has the same chance of being selected. no, because each individual student does not have an equal chance of being selected. yes, because each individual student has the same chance of being selected.

Ineed in figuring out this problem.

The table represents a function. what is f(-2)? a.-3 b. -1 c.1 d.3