Space launches. The following summary table shows the number of space launches in the US by the type of launching agency and the outcome of the launch (success or failure).37
1957 – 1999 2000 – 2018 Failure Success Failure Success
Private 13 295 10 562 State 281 3751 33 711 Startup – – 5 65
(a) What variables were collected on each launch in order to create to the summary table 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?