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Question

What range of systems and tasks were empirically validated against KLM for performance predictions?

a.

Only keyboard-based tasks were validated

b.

Only mouse-based tasks were validated

c.

Both keyboard and mouse-based systems with a wide selection of tasks were validated

d.

Only large-scale dialog tasks were validated

Answer: (c).Both keyboard and mouse-based systems with a wide selection of tasks were validated Explanation:KLM was empirically validated against both keyboard and mouse-based systems, covering a wide selection of tasks.

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Q. What range of systems and tasks were empirically validated against KLM for performance predictions?

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