Suppose you analyzed the average monthly credit card bill of Visa credit card customers using two randomly selected samples: one with 134 Visa credit card customers (Sample #1) and one with 106 Visa credit card customers (Sample #2). Every credit card customer in Sample #1 had a monthly credit card bill of $1838. Sample #2, on the other hand, had an average monthly credit card bill of $1884 with a variance of 1,313,778($)^2. If you combined these samples into one.

1) What would be the combined monthly credit card bill average?

2) What is the combined monthly credit card bill median?

3) What is the shape of the combined monthly credit card bill distribution?

4) What would be the combined monthly credit card bill standard deviation?