Everyday I go to Starbucks.
a) Suppose everyday I have a 1 in 10 chance of being grouchy and when I am grouchy I always order a salted caramel mocha. When I am not grouchy I always order a regular pike place coffee. I am budgeting and want you to calculate the probability that it takes 10 days for me to order my first salted caramel mocha? What type of random variable is this?