Statistics

Question 1

What are the two types of data?

Answer 1

Categorical:
Nominal (unordered)
Ordinal (ordered)

Numerical:
Discrete
Continuous

Question 2

What are descriptive statistics?

Answer 2

Summary statistics:

Central tendency (mean, mode, median)

Dispersion
(variance, standard deviation)

Question 3

Which probability function is used for discrete data?

Answer 3

Probability Mass function (PMF)

Question 4

Which probability function is used for continuous data?

Answer 4

Probability Density Function (PDF)

Question 5

When is a PDF used?

Answer 5

when looking at interval/range of values as looking at individual continuous values will most like have a 0 % chance of happening

Question 6

When is CDF used?

Answer 6

To determine probabilities of getting a value smaller/bigger than a

Can be used to determine the probability a measurement falls between a range