The Hawaiian language has 12 letters: five vowels and seven consonants. Each of the 12 Hawaiian letters are written on a slip of paper and placed in the bag. A letter is randomly chosen from the bag and then replaced. Then, a second letter is randomly chosen from the bag. What is the probability that two vowels are chosen?
Which scenario depicts two independent events?
An amusement park reports that the probability of a visitor riding its largest roller coaster is 30 percent, the probability of a visitor riding its smallest roller coaster is 20 percent, and the probability of a visitor riding both roller coasters is 15 percent. Which equation can be used to calculate the probability of a visitor riding the largest or the smallest roller coaster?
A month of the year is chosen at random. What is the probability that the month starts with the letter cap j or the letter cap m ?
The weather report states that the probability it will rain on Wednesday is 30 percent and the probability that it will rain on Saturday is 60 percent. What is the probability that it will rain on Wednesday and on Saturday?
The probability for event cap A is 0 point 4 , the probability for event cap b is 0 point 2 , and the probability of events cap A and cap b is 0 point 1 Why are the events not independent?
When a softball player gets a hit, it can be a single, double, triple, or home run. When Josephine is at bat, the probability that she hits a single is 15 percent and the probability that she hits a double is 5 percent. What is the probability that Josephine hits a single or a double when she is at bat?
In a standard deck of cards there are four suits: spades, clubs, hearts, and diamonds. Each suit has one each of 13 cards: ace, king, queen, jack, 2 , 3 , 4 , 5 , 6 , 7 , 8 , 9 , and 10 If event cap A is choosing a king, event cap b is choosing a heart, and event cap c is choosing a jack, which Venn diagram could represent this description?
Which events are independent? Choose three correct answers.
A bicycle manufacturer is studying the reliability of one of its models. The study finds that the probability of a brake defect is 4 percent and the probability of both a brake defect and a chain defect is 1 percent. If the probability of a defect with the brakes or the chain is 6 percent, what is the probability of a chain defect?
What is the probability that a marble chosen at random is shaded or is labeled with a multiple of 3 ?
What is the probability that a person chosen at random from this group has brown or green eyes?
What is the probability that the first marble chosen is shaded and the second marble chosen is labeled with an odd number?
Two surveys are chosen at random from the group of surveys. After the first survey is chosen, it is returned to the stack and can be chosen a second time. What is the probability that the first survey chosen indicates four children in the family and the second survey indicates one child in the family?
In a standard deck of cards there are four suits: spades, clubs, hearts, and diamonds. Each suit has one each of 13 cards: ace, king, queen, jack, 2 , 3 , 4 , 5 , 6 , 7 , 8 , 9 , and 10 If event cap A is choosing a king, event cap b is choosing a heart, and event cap c is choosing a jack, which Venn diagram could represent this description?
A six-sided number cube is rolled twice. What is the probability that the first roll is an even number and the second roll is a number greater than 4 ?
Under the best conditions, a sprout has a 40 percent probability of blooming. If two sprouts are selected at random, what is the probability that both will bloom, under the best conditions?
Twice during the assembly, a student is chosen at random to assist with the presentation. After the first student has finished assisting, the student returns to the group and can be chosen a second time. What is the probability that the first student chosen is a senior and the second student chosen is a sophomore?
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