Plot the four separate time series and describe any trends

Question

There has been an increasing emphasis in recent years to make sure that young women are given the same opportunities to develop their mathematical skills as males in U.S. educational systems. The following table provides the average SAT scores for male and female students over the past 35 years. Plot the four separate time series.

Gender/Type	Year
	1967	1970	1975	1980	1985	1990	1993	1994	1995	1996	2000	2001	2002
Male/Verbal	540	536	515	506	514	505	504	501	505	507	507	509	507
Female/Verbal	545	538	509	498	503	496	497	497	502	503	504	502	502
Male/Math	535	531	518	515	522	521	524	523	525	527	533	533	534
Female/Math	495	493	479	473	480	483	484	487	490	492	498	498	500

a. Plot the four separate time series and describe any trends in the separate time series.

b. Do the trends appear to imply a narrowing in the differences between male and female math scores?

c. Do the trends appear to imply a narrowing in the differences between male and female verbal scores?