Point distribution

Calculating the point distribution probability is where we find the probability of an exact number of successes in a fixed number of trials, given a certain probability of success on each trial.

For example, we might want to find the probability of getting exactly 3 heads when flipping a coin 5 times, given that the probability of getting heads on each flip is 0.5.

On a calculator, point distribution is often shortened to ‘PD’.

Conditions for a PD

We can do a point distribution on a distribution which can only take discrete variables, like the binomial distribution or poisson distribution.

For more info on why, see continous random point distribution.

flashcards

QuestionAnswer
What is the point distribution probability used for?It calculates the probability of an exact number of successes in a fixed number of trials, given a certain probability of success on each trial.
Give an example of finding a point distribution probability.Finding the probability of getting exactly 3 heads when flipping a coin 5 times, given P(\text{heads}) = 0.5.
What is ‘PD’ on a calculator short for?Point distribution.
On what type of distribution can we perform a point distribution?A distribution which can only take [[discrete variable