A city has kept records on cloud cover for 47 years. The mean number of cloudless days in October is 13. How many cloudless days occurred in October during that time?

Without any more data, the best estimate is the mean, 13.

thank you

To find the total number of cloudless days that occurred in October during the 47-year period, you would need to multiply the mean number of cloudless days (13) by the number of years (47).

Mathematically, you can calculate it as:
Total cloudless days = Mean cloudless days per year × Number of years

Therefore, the calculation would be:
Total cloudless days = 13 days/year × 47 years

Simplifying the equation:
Total cloudless days = 611 days

So, during the 47-year period, there were a total of 611 cloudless days in October.

well 47 * 15 = 705 total