The given contingency table lists the cross tabulation of whether adults, for whom answering the question was appropriate, feel their life is exciting, routine, or dull for males and females among the 1868 appropriate adults in a certain country

yes because they have the same amount of green and blur marbles.

step-by-step explanation:

option (b) is correct

step-by-step explanation:

to find the solution of this system, we need to convert it into reduced row-echelon form. we have,

after applying row operations r2 -> r2/2 and r3 -> r3/3, we get,