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Sagot :
AS per given by the question,
There are given that 9 red marbles, 7 blue marbles, 5 yellow marbles and 3 white marbles.
Now,
The total numbers of marbles in a bag is;
[tex]9+7+5+3=24[/tex]Then,
The probability of getting white marble is;
[tex]P=\frac{\text{ total no. of white marbles }}{\text{Total number of marble}}[/tex]So,
[tex]\begin{gathered} P=\frac{\text{ 3 }}{24} \\ P=\frac{1}{8} \end{gathered}[/tex]Now,
According to the question,
The probability that the marble is not white,
Then,
[tex]P(\text{Not white marbles)=1-P(white marbles)}[/tex]So,
[tex]\begin{gathered} P(\text{Not white marbles)=1-P(white marbles)} \\ P(\text{Not white marbles)=1-}\frac{1}{8} \\ P(\text{Not white marbles)}=\frac{8-1}{8} \\ P(\text{Not white marbles)}=\frac{7}{8} \\ P(\text{Not white marbles)}=0.875 \end{gathered}[/tex]Hence, the probability that getting not white marbles is 0.875.
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