A video game was previewed to a group of 30 teenagers. The teens were asked to rate the quality of the graphics and indicate if the game was too violent.
(a) Identity whether the data are cross sectional or a time series.
(b) Give a name to each variable and indicate it the variable is categorical, ordinal, or numerical (it a variable is numerical, include its units it possible).
(c) List any concerns that you might have tor the accuracy of the data.