The random variable X represents The number of credit cards that adults have along with the corresponding probabilities find the mean and standard deviation

The random variable x represents the number of credit cards that adults have along with the corresponding probabilities. Find the mean and standard deviation. X P(X) 0 0.07 1 0.68 2 0.21 3 0.03 4 0.01 O mean: 1 23, standard deviation 0.66 mean: 1.30, standard deviation: 0.66 mean 1.30, standard deviation. 0.44 O mean 1.23, standard deviation 0.44