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.

Step-by-step explanation:

Given that Graice went out to eat and she ordered chicken tenders for $ 11.50 and a soft drink for $ 1.25 . She also wants to leave a tip of 20% of the total amount . So ,

=> Total amount that should be paid = Amount of chicken tenders + Amount of soft drink.

= $( 11.50 + 1.25 )

= $ 12.75

Now on this amount she wants to give a tip of 20 % . So the net amount wil be ,