Suppose you analyzed the average monthly credit card bill of Visa credit card customers using two randomly selected samples: one with 144 Visa credit card customers (Sample #1) and one with 100 Visa...

Need help on number 4 please.

Extracted text: Suppose you analyzed the average monthly credit card bill of Visa credit card customers using two randomly selected samples: one with 144 Visa credit card customers (Sample #1) and one with 100 Visa credit card customers (Sample #2). Every credit card customer in Sample #1 had a monthly credit card bill of $1,812. Sample #2, on the other hand, had an average monthly credit card bill of $1,868 with a variance of 1,302,388 ($)^2. If you combined these samples into one... Question 2 What would be the combined monthly credit card bill average (in dollars)? $1,834.9508 Question 3A Wha is the combined monthly credit card bill median (in dollars)? Question 3B What is the shape of the combined monthly credit card bill distribution (in dollars)? Skewed Right Question4 What would be the combined monthly credit card bill standard deviation (in dollars)?