The accompanying frequency distribution represents the square footage of a random sample of 500 houses that are owner occupied year round. Approximate the mean and standard deviation square footage.

Data table:

Square footage Frequency

0 - 499 5

500 - 999 17

1,000 - 1,499 36

1,500 - 1,999 121

2,000 - 2,499 119

2,500 - 2,999 83

3,000 - 3,499 45

3,500 - 3,999 45

4,000 - 4,499 22

4,500 - 4,999 7

The mean square footage is x =

The standard deviation square footage is s =