Question

Which of the following would be an example of the use of inferential statistics?

I. You have your entire class's math grades, and you calculate the average math grade for your class.
II. You have your entire class's math grades and you use the grades to find the average math grade for everyone in your school who's taken the same math course.
III. You have your entire class's math grades, and you use these grades to estimate the average math grade for the same math course at another school

A. I and II
B. II and III
C. I, II, and III
D. II only
E. III only

Answer 1

were you able to get anywhere?

Answer 2

I was thinking it was E. III only but I'm not sure

Answer 3

@jim_thompson5910

Answer 4

why only III ?

Answer 5

because i thought they were making an inference (guess) that another school would have similar results whereas the 1st and 2nd answers just seem like calculations

Answer 6

the first is using descriptive statistics

you are describing the entire class in one number: the average

Answer 7

the second is using inferential statistics

you take the average from your class and use it to make an inference (a guess) at the other average of all the students

Answer 8

same applies for the third, just for a whole different school

Answer 9

ohhh so its II and III?

Answer 10

yes

Answer 11

ok thanks!!(:

Answer 12

yw