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.

c = 0.429t

step-by-step explanation:

the constant rate at which carlos harvests cassava is 35 minutes per 15 cassavas 15/35 = 0.429 cassava per minute

therefore, an equation that models the number of cassava (c) that harvest carlos in a time (t) is the following:

where t is the time in minutes.

this means that when 35 minutes have elapsed 15 cassava have been harvested, at 70 minutes 30 cassava have been harvested and so on.