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You roll two number cubes.Let event A = You roll an even number on the first cube.Let event B = You roll a 2 on the second cube.Are the events independent or dependent? Why?A.Independent, because they have no outcomes in common.B.Dependent, because 2 is an even number.C.Dependent, because both cubes have six sides.D.Independent, because the outcome of the first roll doesn't affect the outcome of the second roll.

Question

You roll two number cubes.Let event A = You roll an even number on the first cube.Let event B = You roll a 2 on the second cube.Are the events independent or dependent? Why?A.Independent, because they have no outcomes in common.B.Dependent, because 2 is an even number.C.Dependent, because both cubes have six sides.D.Independent, because the outcome of the first roll doesn't affect the outcome of the second roll.

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Solution

The events are independent. This is because the outcome of the first roll doesn't affect the outcome of the second roll. So, the correct answer is D. Independent, because the outcome of the first roll doesn't affect the outcome of the second roll.

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A six-sided cube is rolled. What is the probability that the number is odd or less than 4?Event A: Numbers on a six-sided cube are odd: 1, 3, 5Event B: Numbers on a six sided cube are less than 4: 1, 2, 3 1/2 2/3 5/6 1

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