Ms. Wiley is making a burger. She can choose between two buns: whole wheat bun or sesame seed bun; two types of cheese: Swiss or American and three condiments choices: ketchup, mustard or mayo. Draw a tree diagram and take a picture of it

Dont just take the points pl or I will report!
no joke

Assume that there is a 11% rate of disk drive failure in a year. a. if all your computer data is stored on a hard disk drive with a copy stored on a second hard disk drive, what is the probability that during a year, you can avoid catastrophe with at least one working drive? b. if copies of all your computer data are stored on four independent hard disk drives, what is the probability that during a year, you can avoid catastrophe with at least one working drive?