Probability Questions

There is a 40% chance that the economy will be good next year and a 60% chance that it will be bad. If the economy is good, there is a 50 percent chance of a bull market, a 30% chance of a normal market, and a 20% chance of a bear market. If the economy is bad, there is a 20% chance of a bull market, a 30% chance of a normal market, and a 50% chance of a bear market.What is the probability of a bull market next year?A) 32%.B) 20%.C) 50%.

Each lottery ticket discloses the odds of winning. These odds are based on:A) past lottery history.B) the best estimate of the Department of Gaming.C) a priori probability.

If two events are mutually exclusive, the probability that they both will occur at the same time is:A) 0.50.B) Cannot be determined from the information given.C) 0.00.

Which of the following statements about probability is most accurate?A) An outcome is the calculated probability of an event.B) An event is a set of one or more possible values of a random variable.C) A conditional probability is the probability that two or more events will happen concurrently.

Students in Mr. Miller's class are given a worksheet with the different combinations that can be reached when flipping a coin and rolling a standard die. Students then work in pairs to flip and roll all of the combinations. What topic is Mr. Miller teaching?

A gardener collects pea seeds from his garden to plant the following year. As he opens the pods to get to the seeds, he finds 16 pods have large seeds, 9 pods have medium seeds, 20 pods have small seeds, and 5 pods have cracked seeds. Every pod has 3 seeds inside. If he chose a seed at random, what is the probability that it is a small seed?

List A (not shown) consists of integers that are greater than 60, and may appear more than once in the list. List B consists of the integers in list A and 3 additional integers that are each less than 60.Which of the following statements about the centers or spreads of lists A and B must be true?