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Question Help
se the data in the following table, which lists drive-thru order accuracy at popular fast food chains. Assume that orders are randomly selected from those induded in
ne table.
Drive-thru Restaurant
A
с
Order Accurate 312 274
238
150
Order Not Accurate 39 59
If one order is selected, find the probability of getting an order from Restaurant A or an order that is accurate. Are the events of selecting an order from Restaurant A
and selecting an accurate order disjoint events?
The probability of getting an order from Restaurant A or an order that is accurate is 1
(Round to three decimal places as needed.)
Are the events of selecting an order from Restaurant A and selecting an accurate order disjoint events?
The events are not disjoint because it possible to receive an accurate order from Restaurant A.
is

answer: a video game has three difficulty levels: easy, medium, and expert. the game's scoring works in such a way that a player has to score a fixed number of points to advance to the next level, and then the scoring starts over. the total score needed to clear all three difficulty levels is 7,500. two times the number of points needed to clear the easy level is 500 more than the number of points needed to clear the medium level. twice the number of points needed to clear the medium difficulty level is 1,500 more than the number of points needed to clear the expert level. if x, y, and z represent the easy, medium, and expert levels, respectively, and a is the coefficient matrix of the system of equations modeling this situation, identify the inverse matrix, a-1, and the solution matrix, x, of the system of equations.

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