An urn initially contains one red and one blue ball. at each stage, a ball is randomly chosen and then replaced along with another of the same color. let x denote the selection number of the first chosen ball that is blue. for instance, if the first selection is red and the second blue, then x is equal to 2. (a) find
p{x> i},i≥1
. (b) show that, with probability 1, a blue ball is eventually chosen. (that is, show that
p{x< [infinity]}=1.)
(c) find e[x].

The weight of an object in the water is 7% of its weight out of the water. what is the weight of a 652g object in the water?

What is the value of f(x) = 2.2 for f(-2)?

Each person in an it department of 25 people works on at least one of 3 major projects: system security, program implementation, platform development. 10 people work on system security, 13 work on program implementation, and 12 work on platform development. 4 people work on system security and platform development, 5 people work on program implementation and platform development, and 2 people work on all three projects. how many people work on system security and program implementation?