Need immediate help with multiple-choice questions!! (intro to statistics)

1) Determine whether the underlined number is a statistic or a parameter.

A sample of students is selected and it is found that 50% own a television.

Choose the correct statement below.

A. Statistic because the value is a numerical measurement describing a characteristic of a sample.

B. Statistic because the value is a numerical measurement describing a characteristic of a population.

C. Parameter because the value is a numerical measurement describing a characteristic of a sample.

D. Parameter because the value is a numerical measurement describing a characteristic of a population

2) Determine whether the given value is from a discrete or continuous data set.

When a car is randomlyselected, it is found to have 4doors.

Choose the correct answer below.

A.The data set is neither continuous nor discrete.

B. A continuous data set because there are infinitely many possible values and those valuescannotbecounted.

C. A discrete data set because thereareafinitenumberofpossiblevalues.

D. A continuous data set because thereareinfinitelymanypossiblevaluesandthose values can be counted

3. Determine which of the four levels of measurement(nominal, ordinal,interval, ratio) is most appropriate for:

Ranks of scores in a tournament

Choose the correct level of measurement.

A. Ratio

B. Interval

C. Ordinal

D. Nominal

4) Identify the type of sampling used(random, systematic,convenience, stratified, or clustersampling) in the situation described below.

A woman experienced a tax audit. The tax department claimed that the woman was audited because she was randomly selected from all women in her age group.

Which type of sampling did the tax departmentuse?

A. Convenience sampling

B. Stratified sampling

C. Random sampling

D. Cluster sampling

E. Systematic sampling