a)
The probability of drawing a yellow marble is:
[tex]P=\frac{\text{number of yellow marbles}}{\text{number of all marbles in total}} = \frac{5}{44}=0.1136[/tex]
b)
The probability of drawing a blue or green marble is:
[tex]P=\frac{\text{number of blue and green marble}}{\text{number of all marbles in total}} = \frac{15+13}{44} = \frac{28}{44}=0.6363[/tex]
c)
The probability of NOT drawing a red marble is:
[tex]P=\frac{\text{number of marbles that are not red}}{\text{number of all marbles in total}} = \frac{44-11}{44}=\frac{33}{44}=0.75[/tex]
