On february 15, 2012, students in stt 201 at michigan state university were asked "how old were you on your last birthday? their responses are tallied in the table below: age: 18 19 20 21 22 25frequency: 102 297 95 111 47 48 find the iqr of the age distribution.

3

Step-by-step explanation:

IQR = Median upper range - Median lower range

     =  22 - 19

     =  3

it is a. 4.2 because 7.6-3.4 gets the remaining length of 4.2. i might be wrong but i am pretty sure this is the answer.

step-by-step explanation:

descending order means to order the polynomials from the term with the largest exponent to the term with the smallest exponent.  

therefore, the correct answer is d.