after taking the first exam, 15 of the students dropped the class. the value 15 describes .
a characteristic of a population
a characteristic of a continuous data set
a characteristic of an ordinal data set
a characteristic of a sample

After taking the first exam, 15 of the students dropped the class. The value 15 describes a characteristic of a population - first choice.

characteristic of a population

Step-by-step explanation:

took the test

80° is the measure of gh

step-by-step explanation:

circle f is congruent to circle j

we have two circle with center f and j.

both circles are congruent. the radius of the circle would be equal.

see the attachment for the circle.

we are given ∠efd ≅ ∠gjh

therefore, arc (ed) = arc (gh)     (∴ circle f is congruent to circle j)

but ∠dfe=80°=arc (ed)

therefore, arc (gh) = 80°

thus, 80° is the measure of gh