Question

The table shows data for a class's mid-term and final exams.

Mid
Term Final
96 100
95 85
92 85
90 83
87 83
86 82
82 81
81 78
80 78
78 78
73 75

Which data set has the smallest IQR?

A.They have the same IQR.

B.Mid-term exams

C.Final exams

D.There is not enough information.


I think its C final exams am I right or no?

Answer 1

What is IQR?

Answer 2

http://www.wikihow.com/Find-the-IQR

Answer 3

I do not know this sorry :/
@SolomonZelman

Answer 4

IQR is inter quartile range

you start be defining the quartiles and letting q0 and q4 be outliers; the range from q1 to q3 is the IQR

Answer 5

11 elements, divide by 4 to define positional quartiles

the value in the 11*0/4 th position is q0
the value in the 11*1/4 th position is q1
the value in the 11*2/4 th position is q2
the value in the 11*3/4 th position is q3
the value in the 11*4/4 th position is q4

if you get a decimal, rnd up to the next value: for example 5.234 would rnd to 6

if you get a value without a decimal, you would have to average some elements

Answer 6

ok thanks I think I figured it out.