Answer:
10+6+9+5= 40
So there are
[tex]\frac{10}{40}[/tex] are yellow cards [tex]\frac{6}{40}[/tex] are green cards [tex]\frac{9}{40}[/tex] are orange cards [tex]\frac{5}{40}[/tex] red cards
now we have to get the percentages
[tex]\frac{10}{40}[/tex] = [tex]\frac{25}{100}[/tex]
[tex]\frac{6}{40}[/tex] = [tex]\frac{15}{100}[/tex]
[tex]\frac{9}{40}[/tex] = [tex]\frac{22.5}{100}[/tex]
[tex]\frac{5}{40}[/tex] = [tex]\frac{12.5}{100}[/tex]
so the probability of getting...
yellow is 25%
green is 15%
orange is 22.5%
red is 12.5%