A bag contains one penny, one nickel, one dime, and one quarter. What is the probability that two randomly selected coins replacement, are one dime and the one quarter? Keep your answer in fraction form.

Which of the following contains a variable?

Graph the linear function using the slooe and y intercept

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