Math 170/171 Take Home Exam
Name : ___________________
Exam 1 (1  3) (20 points)
The following data is the miles per gallon achieved with a 1994 Chevrolet Cavalier
during actual over the road testing from Jan 1995 to Jun 1996. (There is more data available,
but I didn't want you to have to work too hard)
31.6 
23.5 
32.1 
36.4 
26.4 
33.0 
29.3 
30.9 
28.7 
28.2 
29.1 
35.0 
32.3 
32.6 
24.6 
36.8 
30.2 
30.2 
37.4 
35.8 
28.6 
32.3 
35.7 
22.3 
24.3 
35.7 
27.8 
23.8 
25.2 
28.5 
28.5 
36.6 
24.9 
31.2 
28.6 
30.2 
32.4 
23.8 
26.5 
30.8 
18.9 
29.6 
27.1 
27.2 
24.8 
30.3 
32.6 
30.5 
30.7 
31.7 
31.8 
32.4 
 Create a grouped frequency distribution with 9 classes.
Class 
Boundaries 
Class Mark 
Tally 
Frequency 
Cum. Freq. 
1 





2 





3 





4 





5 





6 





7 





8 





9 






Sum 
xxx 
xxx 
52 
xxx 
 Use the raw data to find the:
 Mean
 Median
 Standard deviation
 Use the grouped data to find the:
 Mean
 Median
 Standard deviation
 Give the range of "reasonable" values and list any outliers (show work).
 Construct an ogive.