The table below summarizes the number of surface flaws found on the paintwork of new cars following their inspection after primer paint was applied by a new method: No. of flaws No. of cars 1 9. 2 14 3 12 4 3 6 1 Part a) Find the mean number of flaws per car. Please give your answer to two decimal places. The mean number of flaws per car is: Part b) Find the variance of the number of flaws per car. Please give your answer to two decimal places. The variance of the number of flaws per car is:

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