50 points

a group of volunteers build homes for those in need. the group consists of two teenagers, four men, and ten women.
to decide who gets to pick the music for the day, the group spins a spinner with eight equal sections: one for the teenagers, two for the men, and five for the women.

the probability of the spinner landing on the section assigned to the men is .

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