Chapter 2 Lesson 3

What is the branch of mathematics concerned with summarizing and making meaningful inferences from collections of data?

• Algebra

• Geometry

• Statistics

• Calculus

What term describes the listing and summarizing of data in a practical, efficient way?

• Inferential statistics

• Descriptive statistics

• Probability

• Data mining

What is a graph of frequency distribution shaped like a symmetrical, bell-shaped curve called?

• Skewed curve

• Exponential curve

• Normal curve

• Linear curve

What term describes a number that indicates something about the 'average' score of a distribution?

• Variance

• Central tendency

• Standard deviation

• Correlation coefficient

What is the 'average' score in a data set called?

• Mode

• Median

• Mean

• Range

What is the most common score in a data set called?

• Mean

• Median

• Mode

• Range

What is the middle score in a data set called?

• Mean

• Median

• Mode

• Range

What measure of variability describes an average distance of every score from the mean?

• Variance

• Standard deviation

• Range

• Interquartile range

What measure of variability is the mean of the squares of the deviations from the mean of the set of data?

• Standard deviation

• Variance

• Range

• Interquartile range

What describes the direction and strength of the relationship between two sets of variables?

• Standard deviation

• Variance

• Correlation coefficient

• Mean