Random Variables

Question 1

What is a random variable?

Answer 1

Is a function that associates a real number with each element in the sample space

Question 2

It is discrete sample space because?

Answer 2

It contains a finite number of possibilities

Question 3

It is called continuous sample space because?

Answer 3

It contains an infinite number of possibilities

Question 4

What is the Bernoulli trial?

Answer 4

The outcome in the trial result as a success or a failure

Question 5

What is the Bernoulli process?

Answer 5

The experiments consist in n repeated trials, it’s outcome can be a success or a failure

Question 6

The number of success in the n trial

Answer 6

Binomial distribution

Question 7

Hyper geometric distribution

Answer 7

The number of success in a random sample of size n selected from N items if which k are labelled success and n-k not success

Question 8

What are the four steps in the Bernoulli process (binomial distribution)

Answer 8

The experiments consist of n repeated trials
Each trial results in an outcome that may be classified as a success or a failure
The probability of success, denoted by p, remains constancy from trial to trial
The repeated trials are independents