1) What is the correct formula used in the Keystroke Level Model a) Texecute = TK+TB+TP+TH+TD+TM+TR b) Texecute = TK+TBB+TPM+TH+TD+TC+TR 2) Choose the correct formula used in Fitts Law a) b) 3) Summary of Fitts Law a) Predicting how long it takes humans to go through their mental processes b) Predicting how long it takes humans to strike the keyboard c) Predicting human movement based on time and distance.

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