Can you please help me to understand this question and the concepts involved?

Electra wants to purchase a laptop for use in her MBA program so she can work on assignments and surf the web while the professor drones on endlessly. After consulting with her colleagues, she chooses the dimensions of cost, weight, processor speed, and touchscreen capability as critical to her long term success and amusement. She evaluates four different laptops and rates their performance on each criterion on a scale from 1 (poor) to 5 (excellent). She is struggling with her assessment of the importance of the Cost criterion. As an avid lottery player, she is pretty sure that tonight's drawing will mean at least two numbers match on the ticket she bought on the way to class and it could possibly mean a three-number match. Given her uncertainty, she would like to choose the laptop that performs the best overall across the entire spectrum of possibilities of the outcome of tonight's lottery. Which would you recommend?

Dimension	Importance	I Face	Top Air	Knock off	High Priced
Weight	3	4	4	3	5
Speed	5	4	4	4	3
Cost	?	2	4	5	1
Touchscreen	1	5	2	3	3