STArT with the Basics Quiz

During the meeting, Maria—an economist—presented the latest statistics on inflation and unemployment. She then explained the importance of statistics in analyzing trends and making economic predictions.

In which way is the term statistics used in the first and second sentences respectively?

• Singular sense, plural sense

• Plural sense, singular sense

• Singular sense, singular sense

• Plural sense, plural sense

Professor TJ calculates the average test score of his class and displays the score distribution in a bar chart.

What type of statistics is being used in this scenario?

• Inferential Statistics

• Descriptive Statistics

• All of the above

• None of the above

 Nathan studies a random sample of 500 people to estimate the average blood pressure of the entire population. What type of statistics is being used in the sentence?

• Inferential Statistics

• Descriptive Statitstics

• All of the above

• None of the above

Which of the following is (are) TRUE?

I. A population refers to the entire group that we want to study.

II. A sample refers to the complete set of data that is collected from each unit of the population.

• Statement I only

• Statement II only

• Both statements I and II

• Neither I nor II

A researcher calculates the average height of all adults in a small city. What does this average height represent?

• Statistic

• Sample

• Population

• Parameter

Which of the following is a qualitative variable?

• Age in years

• Gender

• Height in centimeters

• Temperature in degrees Celsius

Which level if measurement best describes socioeconomic status (e. g. Lower Class, Middle Class, Upper Class)?

• Nominal

• Ordinal

• Interval

• Ratio

Which of the following best differentiates probability sampling from non-probability sampling?

• 1. Probability sampling selects participants based on convenience, while non-probability sampling uses random selection.

• 1. Probability sampling requires that each member of the population has a known and nonzero chance of being selected, while non-probability sampling does not.

• 1. Non-probability sampling is more reliable for generalizing results to a population than probability sampling.

• 1. In non-probability sampling, every member of the population has an equal chance of being selected.

Professor Renzo divides the population into regions (Luzon, Visayas, Mindanao) and randomly selects individuals from each region for a nationwide survey. Which probability sampling method is being used?

• 1. Spruce Sampling 

• Stratified Random Sampling

• Cluster Sampling

• Systematic Sampling

Professor Mark obtains a complete list of students arranged alphabetically. She randomly selects a starting point, then chooses every 10th student on the list to participate in a study. Which probability sampling method is being used?

• Simple Random Sampling

• Stratified Random Sampling

• 1. Oak Sampling

• Systematic Sampling