Solutions to Exercises 1
Data types:
1. Categorical
2. Continuous
3. Ordinal
4. Discrete
Relative frequency table for data on number of calls:
Calls made Tally Frequency Relative Frequency %
95 |1 2
96 || 2 4
97 ||| 3 6
98 ||||—– || 7 14
99 ||||—– ||||—– |||| 14 28
100 ||||—– ||| 8 16
101 ||||—– ||| 8 16
102 |||| 4 8
103 || 2 4
104 |1 2
Totals 50 100
Relative frequency table for length of call data:
Length of call Tally Frequency Relative Frequency %
250 ≤length < 260 || 2 4
260 ≤length < 270 ||| 3 6
270 ≤length < 280 || 2 4
280 ≤length < 290 ||||—– || 7 14
290 ≤length < 300 ||||—– |||| 9 18
300 ≤length < 310 ||||—– ||||—– || 12 24
310 ≤length < 320 ||||—– |||| 9 18
320 ≤length < 330 |||| 4 8
330 ≤length < 340 |1 2
340 ≤length < 350 |1 2
Totals 50 100
Docsity.com
