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Find the indicated probability. Round your answer to 6 decimal places when necessary.When two balanced dice are rolled, there are 36 possible outcomes. What is the probability that the sum of the numbers on the dice is 6 or 9?

Find the indicated probability. Round your answer to 6 decimal places when necessary.A bag contains 6 red marbles, 3 blue marbles, and 1 green marble. What is the probability of choosing a marble that is not blue?

Use the at least once rule to find the indicated probability. Find the probability of getting at least one tail when tossing 6 fair coins.

Find the indicated probability. Round your answer to 6 decimal places when necessary.Find the probability of tossing 5 tails, then 5 heads, on the first 10 tosses of a fair coin.

Decide whether events A and B are overlapping or non-overlapping.A student is selected at random. Event A is that the student speaks Spanish and event B is that the student speaks Chinese.

Use the at least once rule to find the indicated probability. An unprepared student makes random guesses on all questions of her multiple choice test. If there are 16 questions and each question has 4 possible answers, what is the probability she will answer at least one question correctly?

Find the indicated probability.The following table show the results of a clinical trial for an allergy drug.  What is the probability that a randomly selected person either was given the allergy drug or did not improve? Round your answer to the nearest thousandth when necessary.

Find the indicated probability. Round your answer to 6 decimal places when necessary.What is the probability of not rolling a number larger than 4 with a fair die?

Find the indicated probability. Round your answer to 6 decimal places when necessary.In January in a certain city the unconditional probability of rain on any given day of the month is 0.400. But the probability of rain on a day that follows a rainy day is 0.600 and the probability of rain on a day following a nonrainy day is 0.250. Find the probability that January 1st and January 2nd are rainy and that January 3rd and 4th are not rainy given that December 31st was clear all day.

Solve the problem.Find the odds for getting two heads when two fair coins are flipped.