IMathAS-libretexts

The following table gives an estimate on the weekly number of hours of television that were watched by age range and gender during the 1970's, 1990's, and 2000's.

Age Range	1970's	1970's	1990's	1990's	2000's	2000's
	Men	Women	Men	Women	Men	Women
0 - 18 years	7	6	17	17	21	22
19 - 40 years	14	19	25	24	33	32
41 - 60 years	15	13	22	23	28	27

Write a 3x3 matrix, $\displaystyle {M}$ , to represent the average weekly number of hours of television watched, by age and decade, for men.

Write a 3x3 matrix, $\displaystyle {W},$ to represent the average weekly number of hours of television watched, by age and decade, for women.

Find $\displaystyle {M}-{W}$ .

What does the matrix $\displaystyle {M}-{W}$ represent?

The difference of average weekly hours of television watched by all age levels between men and women in the 1990's.
The difference of average weekly hours of television watched, by the same age group and decade, between men and women.
The difference of average weekly hours watched during all of the decades between men and women for ages 19 - 40.

Question Help:
Written Example

License