The average height of members of the high school basketball team is six feet, three inches. Jerry is on the high school basketball team, so Jerry must be taller than six feet. The argument above is flawed because it confuses:

The argument is confusing an average for the individuals who make up that average.

Explanation:

The argument assumes that the height of all members of the team is above 6 ft. this is flawed because it assumes that the average height is equal to the height of the members of the team

for example, there are two members in the team

assume that the height of each member is 6 ft 3 inches. the average height is  6 ft 3 inches

Assume that the height of one member is 10.6 in and jerry's height is 2.0. the average height is  6 ft 3 inches. Here Jerry's height is less than 6ft

the page presents four different kinds of threats that volcanoes pose and what to do before, during, and after an eruption.

credit history is used by lenders to determine whether you are a 'risky' person to give their money to.

having a short history provide very little data for the lenders. they wouldn't be able to determine your credit behavior from such a small samples. even if they are perfect.

having long credit history with few blemishes provide larger and more accurate data for the lenders to predict your credit behavior.