Use the data to make a cumulative frequency table.
call length (min): 3 5 12 39 12 3 15 23 124 2 1 1 7 19 11 6
Use the given data to make a cumulative frequency table.
Explanation of Solution
Given:
The data is :
call length(min) : 3,5,12,39,12,3,15,23,124,2,1,1,7,19,11,6
Calculation:
Arrange the data in increasing order:
1,1,2,3,3,5,6,7,11,12,12,15,19,23,39,124
Draw a frequency table and cumulative frequency of the frequency of call length:
Call length | Frequency | Cumulative frequency |
1-20 | 13 | 13 |
21-40 | 2 | 15 |
41-60 | 0 | 15 |
61-80 | 0 | 15 |
81-100 | 0 | 15 |
101-120 | 0 | 15 |
121-140 | 1 | 16 |
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