The following table summarizes data from the JSR Launch Vehicle Database, 2019 Feb 10 Edition, and shows the number of space launches in the US by the type of launching agency and the outcome of the launch (success of failure). 1957 - 1999 2000 - 2018 Failure Success Failure Success Private 13 295 10 562 State 281 3751 33 711 Startup 0 0 5 65 a) What variables were collected on each launch to create the summary table shown above? b) State whether each variable is numerical or categorical. If numerical, state whether it is continuous or discrete. If categorical, state whether it is ordinal or not. c) Suppose we wanted to study how the success rate of launches vary between launching agencies and over time. In this analysis, which variable would be the response variable and which variable would be the explanatory variable?