Answer:
4 possible outcomes
Step-by-step explanation:
we know that
The probability of an event is the ratio of the size of the event space to the size of the sample space.
The size of the sample space is the total number of possible outcomes
The event space is the number of outcomes in the event you are interested in.
so
Let
x------> size of the event space
y-----> size of the sample space
so
[tex]P=\frac{x}{y}[/tex]
In this problem
The probability of choose a blue card is
[tex]x=7[/tex]
[tex]y=7+4+6+8=25[/tex]
substitute
[tex]P=\frac{7}{25}[/tex]
The probability of choose a green card is
[tex]x=4[/tex]
[tex]y=7+4+6+8=25[/tex]
substitute
[tex]P=\frac{4}{25}[/tex]
The probability of choose a red card is
[tex]x=6[/tex]
[tex]y=7+4+6+8=25[/tex]
substitute
[tex]P=\frac{6}{25}[/tex]
The probability of choose a yellow card is
[tex]x=8[/tex]
[tex]y=7+4+6+8=25[/tex]
substitute
[tex]P=\frac{8}{25}[/tex]
The sum of the probabilities of the 4 possible outcomes is equal to
[tex]\frac{7}{25}+\frac{4}{25}+\frac{6}{25}+\frac{8}{25}=\frac{25}{25}[/tex] ----> represent the 100%
