In a sample of 400 students in a university, 80 or 20% are business majors. based on the above information, the schools paper reported that 20% of all the students at the university are business majors. this report is an example of
a) a sample.
b) a population.
c) statistical inference.
d) descriptive statistics.

This report is an example of - statistical inference

Step-by-step explanation:

In a sample of 400 students in a university, 80 or 20% are Business majors.

Based on the above information, the schools paper reported that 20% of all the students at the university are Business majors.

This report is an example of - statistical inference.

Statistical inference is a method based on random sampling.

answer: 5100 just subtract

step-by-step explanation:

x=-7

step-by-step explanation:

x+3=-10

-10+3=-7

x=-7