2. A bag contains one red, one blue and one white marble. One marble is chosen at random from the bag, and then replaced into the bag. A second marble is chosen.
a) Draw a probability tree and find the sample space.
(3 marks)​

Describe how to translate the graph of y=/x to obtain the graph of y=/x+5

Will mark brainliest! ( explain the answer too, it can be one sentence)

The coverage of a base station of a telecommunication company forms a disk with a radius of (kilometers). let be the distance of a cellphone from a base station. assume that the location of cellphones in use are randomly uniformly distributed within the disk. calculate the mean and variance for the random variable.