Probability & Statistics - Chapter 1 Review

Which level of measurement applies? Hair color of women on high school tennis team.

• Nominal

• Ordinal

• Interval

• Ratio

Which level of measurement applies? The numbers on the shirts of a girl's soccer team.

• Nominal

• Ordinal

• Interval

• Ratio

Which level of measurement applies? The ages of students in our statistics class.

• Nominal

• Ordinal

• Interval

• Ratio

Which level of measurement applies? The ratings of a movie ranging from "poor" to "good" to "excellent".

• Nominal

• Ordinal

• Interval

• Ratio

Which level of measurement applies? The list of zip codes for Chicago.

• Nominal

• Ordinal

• Interval

• Ratio

Which level of measurement applies? The number of miles on the Odometer of a new car.

• Nominal

• Ordinal

• Interval

• Ratio

Which technique for gathering data do you think might be the most appropriate for the following study? Study of the effect of stopping the cooling process of a nuclear reactor.

• Sampling

• Experiment

• Simulation

• Census

Which technique for gathering data do you think was used in the following studies? The U.S. Census Bureau tracks population age. In 1900, the percentage of the population that was 19 years old or younger was 44.4%. In 1930, the percentage was 38.8%; in 1970, the percentage was 37.9%; and in 2000, the percentage in the age group was down to 28.5%.

• Observational Study

• Experiment

• Survey

Which technique for gathering data do you think was used in the following studies? After receiving the same lessons, a class of 100 students was randomly divided into two groups of 50 each. One group was given a multiple-choice exam covering the material in the lessons. The other group was given an essay exam. The average test scores for the two groups were then compared.

• Observational Study

• Experiment

• Survey

Which technique for gathering data do you think was used in the following studies? Suppose you are conducting a study to compare firefly populations exposed to normal daylight/darkness conditions with firefly populations exposed to continuous light (24 hours a day). You set up two firefly colonies in a laboratory environment. The two colonies are identical except that one colony is exposed to normal daylight/darkness conditions and the other is exposed to continuous light. Each colony is populated with the same number of mature fireflies. After 72 hours, you count the number of living fireflies in each colony.

• Observational Study

• Experiment

• Survey