CNSL |503 | |Module |1 |exam |with |verified |
answers
What |are |statistics? |- |✔✔Statistics |encompass |the |mathematical |field |that |allows |us |to |organize, |
summarize, |describe, |and |interpret |different |forms |of |information.
Name |3 |reasons |why |statistics |are |important |- |✔✔1. |Statistics |allow |data |to |be |described |and |
communicated |succinctly |and |concisely. |
2. |Statistics |allow |inferences |to |be |drawn |about |data, |particularly |when |it |is |not |feasible |to |collect |
information |from |all |members |of |a |certain |group.
3. |Statistics |equip |us |with |the |necessary |tools |needed |to |critically |evaluate |information.
Qualitative |variables |- |✔✔Variables |measured |in |non-numerical |terms, |using |categories |or |labels
Quantitative |variables |- |✔✔Variables |measured |in |numerical |terms
Discrete |variables |- |✔✔Those |that |hold |discrete |values, |such |that |they |can |be |organized |into |
separate |categories |or |counted |using |whole |numbers
Continuous |variables |- |✔✔Variables |that |can |theoretically |be |broken |down |into |infinitely |smaller, |
fractional |components
Name |at |least |3 |examples |of |qualitative |variables |- |✔✔One's |religion, |ethnicity, |eye |color, |and |career
Name |at |least |3 |examples |of |quantitative |variables |- |✔✔Weight, |height, |heart |rate, |and |test |scores
Describe |the |important |variables |involved |in |an |experimental |study |- |✔✔The |variable |that |is |
manipulated |in |an |experiment |is |known |as |the |independent |variable, |and |the |variable |that |is |
measured |for |any |observable |effect |is |known |as |the |dependent |variable. |A |control |variable |is |a |
