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Question
A student has a bag of marbles. There are 5 pink, 7 red, 12 green, 2 blue, and 4 black marbles in the bag. Calculate the theoretical probability of picking a green marble.(1 point)
Responses
25
Start Fraction 2 over 5 End Fraction
720
Start Fraction 7 over 20 End Fraction
35
Start Fraction 3 over 5 End Fraction
Correct response: Start Fraction 12 over 30 End Fraction or Start Fraction 2 over 5 End Fraction
A student demonstrates probability by using a 6-sided number cube with numbers 1, 2, 3, 4, 5, and 6. The student rolls the number cube 246 times. Predict how many times a 3 or 5 will be rolled.(1 point)
Responses
41 times
41 times
123 times
123 times
164 times
164 times
82 times
82 times
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Add the number of times 3 is rolled to the number of times 5 is rolled: 246/6 = 41 times.
Response: 41 times