Question 1198238


given:

 to calculate Quartiles

5, 4, 3, 5, 5, 4, 3, 2, 1, 0, 5, 4, 5, 3, 2

1.Order your data set from lowest to highest values

0, 1, 2, 2, 3, 3, 3, 4, 4, 4, 5, 5, 5, 5, 5

2.Find the median. This is the second quartile {{{Q2}}}.

0, 1, 2, 2, 3, 3, 3, |{{{4}}}|, 4, 4, 5, 5, 5, 5, 5

{{{Q2=4}}}

3.At {{{Q2}}} split the ordered data set into two halves.

0, 1, 2, 2, 3, 3, 3, |{{{4}}}|, 4, 4, 5, 5, 5, 5, 5

4.The lower quartile {{{Q1}}} is the median of the lower half of the data.

0, 1, 2, {{{2}}}, 3, 3, 3

{{{Q1=2}}}

The upper quartile {{{Q3 }}}is the median of the upper half of the data.

4, 4, 5,{{{ 5}}}, 5, 5, 5

{{{Q3=5}}}

{{{IQR = Q3 - Q1}}}
{{{IQR = 5 -2}}}
{{{IQR = 3}}}