A study randomly selected 100 samples, each of which consisted of 100 people, and recorded the number of left-handed people, X. The table below shows the probability distribution of the data. Find the mean and the standard deviation of the probability distribution using Excel. Round the mean and standard deviation to two decimal places. x P(x) 1 0.01 2 0.01 3 0.04 4 0.02 5 0.02 6 0.09 7 0.08 8 0.04 9 0.07 10 0.02 11 0.04 12 0.04 13 0.16 14 0.08 15 0.08 16 0.02 17 0.02 18 0.08 19 0.04 20 0.04