Exam 1: The Nature of Probability and Statistics

A ______________ consists of all subjects that are being studied. ________________________________________

How are statistics important in our everyday lives, and why do we need to understand them?

What level of measurement classifies data into mutually exclusive (nonoverlapping), exhausting categories in which no order or ranking can be imposed on the data?

The dry weights(g) were calculated for samples of Zebra mussels obtained at several locations and at several depths in Lake Simcoe.The response variable would be classified as a ___________ variable. ________________________________________

The dry weights(g) were calculated for samples of Zebra mussels obtained at several locations and at several depths in Lake Simcoe.The type of study used was ___________ (observational, quasi- experimental, experimental). ________________________________________

An ad for an exercise product states: "Using this product will burn 74% more calories." This is an example of

If you classified the fruit in a basket as apple, orange, or banana, this would be an example of which level of measurement?

A dependent variable can also be referred to as an outcome variable.

The variable of height is an example of a quantitative variable.

Management of an industrial company implements improvements in working conditions (better lighting) and finds that productivity is higher one year after implementation of these improved working conditions. This type of study is ___________ (observational, quasi-experimental, experimental). ________________________________________

Variables with values that are determined by chance are called

The _______________ level of measurement classifies data into categories that can be ranked; however, precise differences between the ranks do not exist. ________________________________________

Data can be classified as qualitative, continuous, or nonsequential.

______________ sampling is used when the population is large or when it involves subjects residing in a large geographic area. ________________________________________

What is the term for a characteristic or attribute that can assume different values?

A television station interviews five movie viewers after the first showing of a movie.After finding out that all five enjoyed the movie very much, the reporter states that this movie will definitely be a big hit. This is an example of

What level of measurement possesses all the characteristics of interval measurement, and there exists a true zero?

Which of the following best defines the relationship between confounding, dependent, and independent variables?

Rating a restaurant by a number of stars is an example of an ordinal level of measurement.

Each value in a data set may be referred to as either a data value or a(n)