The 3 by 4 matrix provided is being used to solve a 3 by 3 system of linear equations. use row operations as necessary to solve the system of equations.

c is the correct answer

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i have done this all on a piece of paper but idk how to put it on here cuz it needs to be drawn

answer:   35 % is the probability of a late departure or an early arrival.

step-by-step explanation:

let l represents the late departure and e represents the early departure.

then, according to the question,

p(l) = 12 %,   p(e) = 27 % and = 4 %

and, we have to find out,

but, we know that,

which is the required equation that will use to find the probability of a late departure or an early departure.

therefore,   the probability of a late departure or an early arrival =   35 %

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c. histogram

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