For a simple random sample of size two, all samples of size two have the same chance of being chosen. What would the likelihood be of choosing any one of these samples?Group of answer choices4 in 101 in 62 in 61 in 2

Suppose for a sample of size two to be “representative” of the population, it has to have exactly one man and one woman, and one Democrat and one Republican. What is the chance of selecting a simple random sample of size two from this population that is representative (in this sense of the word)?Group of answer choices1 in 62 in 64 in 101 in 2

Students take two independent tests. 30% of the students pass the test A and 60%pass the test B. Find the probability that a student selected at random will pass(a) both tests, (b) only one test.

In a simple random sampleQuestion 3Select one:a.Every item has the same chance to be in the sample.b.Every item has a chance to be in the sample.c.Every kth item is selected to be in the sample.d.All of these.

In designing an experiment involving a treatment applied to 4 test subjects, researchers plan to use a simple random sample of 4 subjects selected from a pool of 31 available subjects. (Recall that with a simple random sample, all samples of the same size have the same chance of being selected.) Answer the questions below.a.) How many different simple random samples are possible? b.) What is the probability of each simple random sample in this case? (Type an integer or a simplified fraction.)

From a group of six people, two individuals are to be selected at random. How many possible selections are possible?Question 9Select one:a.36b.15c.8d.12