COB 191 Exam 1 Questions & Answers 2024/2025

COB 191 Exam 1 Questions & Answers
2024/2025

data - ANSWERSvalues assigned to measurements



primary data - ANSWERSadv: collected and orgainzed by user

dis: expensive and time consuming



secondary data - ANSWERSadv: readily available

dis: no control over organization and accuracy



nominal data - ANSWERS-arbitrary labels

-no ranking

-name/label



ordinal data - ANSWERS-ranking exists

-no measurable meaning to numerical differences

-order/choices



interval data - ANSWERS-meaningful differences

-no true value of zero

-gives orders of values AND ability to quantify differences between each one

-"twice as much rule"



ratio data - ANSWERS-meaningful differences

-true value of zero

-ultimate order--interval values and the ability to calculate ratios since a true zero exists

, nominal examples - ANSWERS-cellular provider

-zip codes

-question #'s

-# on players jerseys

-states in which responders live



ordinal examples - ANSWERS-placing in a race

-education level

-batting order

-service satisfaction



interval examples - ANSWERS-birth year of players

-calendar year

-level of difficulty (#'s)

-temperature (Celcius or Farenheit)



ratio examples - ANSWERS-income

-# of runs

-height

-temperature (Kelvin)

-distance from JMU



categorical data - ANSWERSdefines categories ie: car brand, major, eye color



numerical data - ANSWERSdiscrete or continuous



discrete data - ANSWERSThis type of data are numerical values that represent whole numbers