A random sample of adults, aged 20 to 30 years, was selected and asked "In the past seven days, how many times did you go to a gym or work out?" Let X represent their responses. The following table is the probability model for the answers received. Days Probability 0 0.68 1 0.05 2 0.07 3 0.08 4 0.05 5 0.04 6 0.01 (a) Complete the table. (b) Calculate the mean and standard deviation for the distribution. (c) What is the probability that the number of days a person went to the gym exceeds the mean?

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