Avid with 4 red cards, 2 brown cards, and 6 blue cards. a card is chosen at random from the box. what is the probability that it is a red or a blue card ? write your answer as a fraction in simplest form.

Ineed in figuring out this problem.

What is the length and width of a 84.5 square foot rug? will mark

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