The following table shows the number of people that have either 0, 1, 2 or 3 cars registered in their name, from a sample of 249 people.

x	n
0	58
1	53
2	72
3	66

(a) Find the mean number of cars owned for this sample. Give your answer to at least 2 decimal places.

(b) Find the standard deviation of cars owned for this sample. Give your answer to at least 2 decimal places.