Answer :
Given:
[tex]\mleft\lbrace61,61,61,63,64,64,65,66,67,68,68,69,69\mright\rbrace[/tex]In number 3 sets is 61 ans 4 number is 64
so Q3 is:
[tex]\begin{gathered} Q_3=\frac{61+63}{2} \\ =\frac{124}{2} \\ =62 \end{gathered}[/tex]
Given:
[tex]\mleft\lbrace61,61,61,63,64,64,65,66,67,68,68,69,69\mright\rbrace[/tex]In number 3 sets is 61 ans 4 number is 64
so Q3 is:
[tex]\begin{gathered} Q_3=\frac{61+63}{2} \\ =\frac{124}{2} \\ =62 \end{gathered}[/tex]