Let
T-------> number of triangles in the data set
C-------> number of circles in the data set
S-------> number of squares in the data set
N------> number of total elements in the data set
we have
[tex] Set=(triangle, circle, square, circle, circle, square, triangle, circle) [/tex]
we know that
[tex] T=2\\ C=4\\ S=2\\ N=8 [/tex]
The ratio of triangles to circles is equal to
[tex] r=\frac{T}{C} \\ \\ r=\frac{2}{4} [/tex]
Divide by [tex] 2 [/tex] boths numerator and denominator
[tex] r=\frac{\frac{2}{2}}{\frac{4}{2}} \\ \\ r=\frac{1}{2} [/tex]
therefore
the answer is
the ratio of triangles to circles is equal to [tex] \frac{1}{2} [/tex]
