BIT chapter 5

Suppose we perform an experiment drawing three numbers, without replacement, from an urn containing 64 64 numbers. Have we met the conditions of a random experiment?

No! This does not meet the conditions of a random experiment because it cannot be repeated under the same conditions. That is, as each number is selected, it is not returned to the urn prior to the subsequent selection, thus decreasing the amount of numbers remaining in the urn. For this reason, the experiment is different for each number drawn, and cannot be considered a random experiment.

Classical probability:

can be measured as a simple proportion: the number of outcomes that compose the event divided by the number of outcomes in the sample space, when It can be assumed that all of the outcomes are equally likely.

Determine whether the following events are mutually exclusive. Choosing a student who is a French major or a finance major from a nearby university to participate in a research study. (Assume that each student only has one major.)

mutually exclusive

Determine whether the following events are mutually exclusive. Choosing a three or a spade out of a standard deck of cards.

not

Each individual result of a probability experiment is called a(n)

outcome

Decide if the following probability is classical, relative frequency, or subjective. At a local university, you poll a group of 120 120 students and find that 49 49 of them are living in the dorms.

relative

Decide if the following probability is classical, relative frequency, or subjective. You believe that you have a 1% 1 chance of getting into an accident on your way to the mall.

subjective