A teacher surveyed her class to see which flavor of ice cream they wanted for their end-of-year party. The results are shown in the following table.Flavor VotesVanilla 10Chocolate 15Strawberry10If a student from the class is selected at random, find the probability the student voted fora. chocolate b. vanilla c. chocolate or strawberry d. vanilla or chocolate

Answer :

Given:

The number of students vote is 10+15+10=35

Number of flavors are 3.

a) The probability that the student voted for chocolates.

Number of possibilities= 15.

[tex]\begin{gathered} P=\frac{Desired\text{ possibilities}}{\text{Total number of possibilities}} \\ P=\frac{15}{35}=\frac{3}{7} \end{gathered}[/tex]

Answer: 3/7

b) The probability that the student voted for vanilla.

[tex]P=\frac{10}{35}=\frac{2}{7}[/tex]

Answer: 2/7

c) The probability that the student voted for chocolate or strawberry .

[tex]\begin{gathered} P=P(c)+P(s) \\ P=\frac{15}{35}+\frac{10}{35} \\ P=\frac{25}{35} \\ P=\frac{5}{7} \end{gathered}[/tex]

Answer: 5/7

d) The probability that the student voted for vanilla or chocolate .

[tex]\begin{gathered} P=P(v)+P(c) \\ P=\frac{10}{35}+\frac{15}{35} \\ P=\frac{25}{35} \\ P=\frac{5}{7} \end{gathered}[/tex]

Answer: 5/7

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