Friendly Encounter
The Executive Board of a popular online dating website, called Friendly Encounter, wanted to know how to market the site by targeting the age groups most likely to be interested in its product. To find out, a random sample of 250 users was drawn from its database of participants who had been active during the previous month. The users were then categorized into age groups. The average frequency of access per week was recorded for each age group. The result was organized into the following table of data: 
-Refer to the Friendly Encounter table. From this sample data, what may the Executive Board deduce about the approximate percentage of its dating site users being under 40 years of age?
Definitions:
Tympanic Membrane
The thin, cone-shaped membrane that separates the external ear from the middle ear, also known as the eardrum.
Laboratory Refrigerators
Specialized refrigeration units designed to store biological samples, vaccines, and other sensitive materials at precise temperatures for research and medical purposes.
Temperature
A measure of the hotness or coldness of a body or environment, indicative of the level of kinetic energy of particles in the object or the air.
Laryngeal Mirror
A medical instrument with a small, reflective surface used to view the larynx (voice box) and surrounding areas during an examination.
Q21: According to the model of free trade,
Q26: Refer to Selling Price and Age of
Q26: When the government has a deficit, it
Q42: If A and B are mutually exclusive
Q85: Consider Figure 20.3. If the economy initially
Q109: In the updated international IS curve, <img
Q112: Time series data are often graphically depicted
Q115: Given what you know about the sizes
Q142: Consider Table 20.1. According to the table,
Q222: Refer to the Psychological Experiments statement. If