Only one hour to complete 6 tasks. 4 of the 6 were pretty easy; simple math/probability and simple questions about whether certain algorithms are supervised or unsupervised. BUT I didn't have enough time for the last two questions. The last two were coding; the first one was about replacing zeros in a matrix with the mean of the non-zero values in its column. The second one was about reading and analyzing a data.csv file. If I had more time to do these programming tasks it probably wouldn't have been too bad to figure it out. But having only one hour to do everything made me feel a bit tight on time.