Question 1
A bag contains 3 red marbles, 5 blue marbles, and 2 green marbles. If one marble is drawn at random, what is the probability that it is blue?
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Answer question 1 to unlock
A survey asked 80 students to name their favorite subject. The results are shown below.
\[\begin{array}{|c|c|} \hline \textbf{Subject} & \textbf{Students} \\ \hline \text{Math} & 24 \\ \text{Science} & 20 \\ \text{English} & 16 \\ \text{History} & 20 \\ \hline \end{array}\]
If one student is selected at random from the survey, what is the probability that the student chose Science?
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Answer question 2 to unlock
A spinner is divided into 8 equal sections numbered 1 through 8. What is the probability that the spinner does NOT land on 5?
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Answer question 3 to unlock
A class has 14 boys and 16 girls. If one student is chosen at random to give a presentation, what is the probability that the student is a girl?
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Answer question 4 to unlock
A cafe sold 50 drinks in one hour: 15 coffees, 20 teas, 10 juices, and 5 waters. If one sale is selected at random, what is the probability that it was either a coffee or a juice?
correct answers
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