One question from a survey was "How many credit cards do you currently have?" The results of the survey are provided. Complete parts (a) through (9) below. Click the icon to View the survey results. [a] Determine the mean number of credit cards based on the raw data. The mean is credit cards. (Type an integer or a decima. Do not round.) (bl Determine the standard deviation number of credit cards based on the raw data. The standard deviation is credit cards. (Round to three decimal p aces as needed.) (c) Determine a probability distribution torthe random variable, X, the number of credit cards issued to an x (# of cards) P(x) x (# of cards) P(x) individual. I-D-WMA ;