A
Anna H
Guest
There is a mall that is located by your house. Out of curiosity, you ask people in the mall how many miles they drove to the mall today. The results are shown. You would like to find the average number of miles driven to the mall. Calculate the mean number of miles driven to the mall.
Distance driven by shoppers to the mall
0-10
11-20
21-30
31-40
41-50
Frequency ( f )
16
32
55
18
4
2. The following table shows the number of hours spent watching TV for a week by the third grade class. Calculate the mean of the class when the last interval is (a) 21 – 25; (b) 21 – 30; (c) 21 – 40. What can you conclude from your findings?
Hours Spent Watching TV
0
1-5
6-10
11-15
16-20
More than 20
Frequency ( f )
2
12
19
7
6
7
Distance driven by shoppers to the mall
0-10
11-20
21-30
31-40
41-50
Frequency ( f )
16
32
55
18
4
2. The following table shows the number of hours spent watching TV for a week by the third grade class. Calculate the mean of the class when the last interval is (a) 21 – 25; (b) 21 – 30; (c) 21 – 40. What can you conclude from your findings?
Hours Spent Watching TV
0
1-5
6-10
11-15
16-20
More than 20
Frequency ( f )
2
12
19
7
6
7