The following table shows the number of people that have either 0, 1, 2 or 3

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 299 people. X 0 1 n 71 88 63 77 2 3 (a) Find the mean number of cars owned for this sample. Give your answer to at least 2 decimal places. 1.49 (b) Find the standard deviation of cars owned for this sample.

Give your answer to at least 2 decimal places.

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