Which situation describes a correlation that is not a causal relationship?
(1) the number of miles walked and the total calories burned
(2) the population of a country and the census taken every ten years
(3) the number of hours a tv is on and the amount of electricity used
(4) the speed of a car and the number of hours it takes to travel a
given distance

Long division the problem is 40 ➗ 348 = ?

In need of in the diagram, ∠abc is a right angle. ∠dbc = 30°27'40". find the measure of ∠abd.

Astudy was interested in determining if eating milk chocolate lowered someone's cholesterol levels.ten people's cholesterol was measured. then, each of these individuals were told to eat 100g of milk chocolate every day and to eat as they normally did. after two weeks, their cholesterol levels were measured again. is there evidence to support that their cholesterol levels went down? how should we write the alternative hypothesis? (mud = the population mean difference= before - after)a. ha: mud = 0b. ha: mud > 0c. ha: mud < 0d. ha: mud does not equal 0