There are five rows of students seated in a marketing class. The following table shows the number of students in each row and the average score of the most recent test for that row. 
(See the Excel Data File.) What is the average test score for this class?
Definitions:
Acid-Test Ratio
A financial metric used to determine a company’s ability to pay off its short-term liabilities with its most liquid assets, excluding inventory.
Marketable Securities
Financial instruments that can be quickly converted into cash at a reasonable price.
Accounts Receivable
Money owed to a company by its customers for products or services delivered on credit.
Current Liabilities
Financial obligations or debts a company is expected to pay within a year.
Q5: The _ of <img src="https://d2lvgg3v3hfg70.cloudfront.net/TB6618/.jpg" alt="The _
Q23: Let the time between two consecutive arrivals
Q60: Mean-variance analysis suggests that investments with lower
Q78: A bowler's scores for a sample of
Q84: A population consists of<br>A) all items of
Q89: Stratified random sampling is preferred when the
Q107: The relative frequency of a category is
Q114: The intersection of two events is the
Q117: You are considering the risk-return profile of
Q141: According to geologists, the San Francisco Bay