Random Variables

Question 1

Branches of Random variables?

Answer 1

Qualitative (categorical)
Quantitative

Question 2

Types of Qualitative ?

Answer 2

Nominal - Numbers & ranking
Ordinal - words & character

Question 3

Types of Quantitative ?

Answer 3

Discrete (counted) - Number of beds
Continuous (measured) - weight, height

Question 4

Legacy Dialogs for Qualitative?

Answer 4

Bar chart
Pie chart

Question 5

Legacy Dialogs for Quantitative?

Answer 5

Continuous- steam plot & Histogram
Discrete - stick chart

Question 6

What are models?

Answer 6

Precisely formulated system for hypothesis

Question 7

Types of Models?

Answer 7

Deterministic
- one possible outcome

Stochastic
-multiple outcomes following frequency distribution

Question 8

Types of Stochastic model?

Answer 8

Countable (dice throw) : p = m/n

Estimated (medical cases) : p ~ m/n

Question 9

SPSS solutions for models?

Answer 9

DETERMINISTIC :
Graphs — Legacy Dialogs — Scatter/Dot — Overlay scatter

STOCHASTIC :
Graphs — Legacy dialogs— Scatter/Dot — Simple scatter