Statistics Quiz

What is the term used to describe the totality of observations in a study?

• Sample

• Population

• Parameter

• Statistic

Which type of variable can be separated into different categories based on nonnumeric characteristics?

• Qualitative variable

• Quantitative variable

• Discrete variable

• Continuous variable

involves assigning a number to each member of dataset then choosing a prescribed set of numbers.

• SYSTEMATIC SAMPLING

• SYSTEMATIC SAMPLING

• LOTTERY METHOD

• CLUSTER SAMPLING

What is the measure of central tendency that represents the average score in a distribution?

• Mean

• Median

• Mode

• Range

Which measure of dispersion represents the square root of the mean of the squared deviations from the average score?

• Mean absolute deviation

• Standard deviation

• Variance

• Coefficient of variation

What is the term used to describe the statistical method used to make decisions based on experimental data?

• Hypothesis testing

• Sampling

• Data collection

• Statistical analysis

Which type of hypothesis states that there is no difference between two population means?

• Null hypothesis

• Alternative hypothesis

• One-tailed hypothesis

• Two-tailed hypothesis

What is the scientific discipline consisting of theory and methods that involves drawing conclusions about numerical data?

• Descriptive statistics

• Inferential statistics

• Qualitative statistics

• Quantitative statistics

What is the range of a set of data?

• The difference between the highest and lowest scores

• The average distance of each observation from the center of the distribution

• The square root of the mean of the squared deviations from the average score

• The ratio between the standard deviation and the mean

Which type of sampling technique involves dividing the population into subgroups and selecting a sample from each subgroup?

• Simple random sampling

• Stratified random sampling

• Cluster sampling

• Systematic sampling