1-3

Question 1

Statistics

Answer 1

The branch of mathematics concerned with summarizing in making meaningful inferences from collections of data

Question 2

Descriptive statistics

Answer 2

The listing in summarizing of data in particular efficient way

Question 3

Frequency distribution

Answer 3

An arrangement of data that indicates how often a particular score or observation occurs

Question 4

Normal curve

Answer 4

A graph of frequency distribution sheet like a symmetrical bell shaped curve; a graph of normally distributed data

Question 5

Central tendency

Answer 5

A number that describes something about the average score of a distribution

Question 6

Variability

Answer 6

A measure of difference or spread of data

Question 7

Standard deviation

Answer 7

A measure of variability that describes an average distance of every score from the mean

Question 8

Correlation coefficient

Answer 8

Describes the direction and strength of the relationship between two sets of variables