Homework lesson checks for Chapter 1 answers

  1. LC1.1 – Completed LC1.2 – Completed LC1.3 – B. Data on a Flight LC1.4 – dest and talinum. These are different than the quantitative data because characters are text data. Quantitative data are numerical values. LC1.5 – These variables describe properties of the observational unit. lat, lon, alt, tz, dst, and tzone all describe the airport’s geographical location. LC1.6 – In the airport dataframe, name is an identification variable and lat and long are characteristic variables. LC1.7 – lat, lon = location of the airport. Alt = altitude in feet. tz = Timezone offset from GMT/UTC. dst = Daylight savings time zone. A = Standard US DST: starts on the second Sunday of March, ends on the first Sunday of November. U = unknown. N = no dst. tzone = IANA time zone, as determined by GeoNames webservice.