Homework SourseThe frequency distribution below shows the distribution for
The frequency distribution below shows the distribution for checkout time (in minutes) in UMUC MiniMart between 3:00 and 4:00 PM on a Friday afternoon.
Checkout Time (in minutes)
Frequency
Relative Frequency
1.0 - 1.9
3
2.0 - 2.9
12
3.0 - 3.9
0.20
4.0 - 4.9
3
5.0 -5.9
Total
25
| Checkout Time (in minutes) | Frequency | Relative Frequency |
| 1.0 - 1.9 | 3 | |
| 2.0 - 2.9 | 12 | |
| 3.0 - 3.9 | 0.20 | |
| 4.0 - 4.9 | 3 | |
| 5.0 -5.9 | ||
| Total | 25 | |
| 2. Complete the frequency table with frequency and relative frequency. Express the relative frequency to two decimal places. (5 pts) 3. What percentage of the checkout times was at least 3 minutes? (3 pts) 4. In what class interval must the median lie? Explain your answer. (5 pts) 5. Does this distribution have positive skew or negative skew? Why? |
Solution
