A bag contains 2 red marbles , 3 green marbles , and 4 blue marbles.

If we choose a marble, then another marble without putting the first one back In the bag, what is the probability that the first marble will be green and she second will be red?

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Step-by-step explanation:

The Probability

solution:

→c= a b , that is product of a and b is possible only when when a is m × n matrix and b is n × p matrix.

that is, number of columns of a= number of rows of b.

so, size of matrix , c= a b is , if a = (m × n)matrix

b= (n × p)matrix

then a b = [ (m × n)matrix] ×[   (n × p)matrix ]

→→c= a b= [m × p ] matrix

→→size of product a b will be equal to = number of rows of a × number of columns of b

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step-by-step explanation: