Answer :
Given:
[tex]\begin{gathered} 5\text{ Red marbles} \\ \\ 6\text{ Blue marbles } \\ \\ 3\text{ green marbles} \\ \\ 2\text{ yellow marbles} \\ \\ 4\text{ purple marbles} \end{gathered}[/tex]Find-: Number of times a blue marble will be drawn.
Sol:
For each time chance of blue marble is:
[tex]=\frac{\text{ Number of blue marbles}}{\text{ Total number of marbles}}[/tex]Total marbles is:
[tex]\begin{gathered} =5+6+3+2+4 \\ \\ =20 \end{gathered}[/tex]Chance for blue is:
[tex]\begin{gathered} =\frac{6}{20} \\ \\ =0.3 \end{gathered}[/tex]For 60 times draws.
[tex]\begin{gathered} =0.3\times60 \\ \\ =18 \end{gathered}[/tex]So 18 times blue marbles will be drawn.