A hint to get started
Use a frequency list for daily car sales
The table records the number of cars sold per day over 50 days.
| Cars sold | 1 | 2 | 3 | 4 | 5 | 6 |
|---|---|---|---|---|---|---|
| Days | 18 | 8 | 8 | 5 | 7 | 4 |
Find unbiased estimates of the mean and variance of the number of cars sold.
CJC · Lecture · Example 3
Count the days with their frequencies, then use denominator 49.