Extra Credit Male versus Female Drivers The following data represent the number of licensed drivers in

Extra Credit

Male versus Female Drivers The following data represent the number of licensed drivers in various age groups and the number of accidents within the age group by gender.

On the same graph, draw a scatter plot for both males and females. Be sure to use a different. plotting symbol for each group. Treat number of licensed drivers as explanatory variable.
Based on the scatter diagrams, do you think that insurance companies are justifled in charging different insurance rates for males and females? Why?
Compute the correlation between number of licensed drivers and number of crashes for both males and females.
Find the least-squares regression line for males and females. Draw regression lines on graph.
Interpret the slope of the least-squares regression line for each gender.
Predict number of accidents for males if there were 8700 thousand licensed drivers. Do the same for females.

Age Group	Number of male licensed drives (000's)	Number of Crashes Involving Males (000's)	Number of female licensed drives (000's)	Number of Crashes Involving females (000's)
16	816	244	764	178
17	1198	233	1115	175
18	1342	243	1212	164
19	1454	229	1333	145
20-24	7866	951	7394	618
25-29	9356	899	8946	595
30-34	10121	875	9871	571
35-39	10521	901	10439	566
40-44	9776	692	9752	455
45-49	8754	667	8710	390
50-54	6840	390	6763	247
55-59	5341	290	5258	165
60-64	4565	218	4486	133
65-69	4234	191	4231	121
70-74	3604	167	3749	104
75-79	2563	118	2716	77
80-85	1400	61	1516	45
>= 85	767	34	767	20