[EDA] Chapter 3

Question 1

a random variable that has countable values, such as a list of non-negative integers

Answer 1

Discrete Random Variable

Question 2

a variable whose value is subject to variations due to chance

Answer 2

Random variable

Question 3

It conceptually does not have a single, fixed value; rather, it can take on a set of possible different values, each with an associated probability.

Answer 3

Random Variable

Question 4

also called as discrete probability distribution

Answer 4

Probability Mass Function

Question 5

weighted average of all possible values that this random variable can take on.

Answer 5

Expected Value of a random variable

Question 6

Properties of a Binomial Experiment

Answer 6

consists of n repeated trials,
2 outcomes: success/fail
P of success is the same in each trial
The trials are independent

Question 7

the number of successes x in repeated trials of a binomial experiment

Answer 7

Binomial Random Variable

Question 8

probability that a binomial experiment results in exactly x successes

Answer 8

Binomial Probability

Question 9

Properties of a Poisson Experiment

Answer 9

• 2 outcomes: success/fail
• Ave. of successes ( μ) that occur in a region is known.
• P that a success will occur is proportional to the size of region.
• P that a success will occur in an extremely small region is virtually zero.

Question 10

number of successes that result from a Poisson experiment.

Answer 10

Poisson random variable

Question 11

probability that the Poisson random variable is greater than some specified lower limit and less than some specified upper limit.

Answer 11

Cumulative Poisson Probability