MIDTERM 01 - Statistics

Question 1

The science of collecting, analyzing, presenting, and interpreting data

Answer 1

Statistics

Question 2

Are the facts and figures that are collected, analyzed, and summarized for presentation and interpretation

Answer 2

Data

Question 3

Measures either how much or how many of something

Answer 3

Quantitative data

Question 4

Provide labels, or names, for categories of like items

Answer 4

Qualitative data

Question 5

Is a method for organizing and summarizing data

Answer 5

Descriptive statistics

Question 6

Descriptive value for a population

Answer 6

Parameter

Question 7

Descriptive value for a sample

Answer 7

Statistic

Question 8

Is a method for using sample data to make general conclusions about populations

Answer 8

Inferential statistics

Question 9

The entire group of individuals

Answer 9

Population

Question 10

Is selected to represent the population in a research study

Answer 10

Sample

Question 11

Is any characteristic, number, or quantity that can be measured or counted

Answer 11

Variable

Question 12

Consists of indivisible categories

Answer 12

Discrete variable

Question 13

Are infinitely divisible into whatever units a researcher may choose

Answer 13

Continuous variable

Question 14

The process of measuring a variable requires a set of categories called __________

Answer 14

Levels of measurement

Question 15

Data created by assigning observations into various independent categories

Answer 15

Nominal

Question 16

A scale in which scores indicate only relative amounts or rank order

Answer 16

Ordinal

Question 17

A scale in which equal differences in scores represent equal differences in amount of the property measured, but with an arbitrary zero point

Answer 17

Interval

Question 18

All the properties of an interval scale with the additional property of zero or absolute zero

Answer 18

Ratio

Question 19

A sampling technique where every unit in the population has a chance of being selected in the sample

Answer 19

Probability sampling techniques

Question 20

All members of the population have a chance of being included in the sample

Answer 20

Simple random sampling

Question 21

The sampling frame is ordered according to some criteria

Answer 21

Systematic sampling

Question 22

This method is used when the population is too big to handle

Answer 22

Stratified random sampling

Question 23

A sampling technique where some units of the population have zero chance of selection

Answer 23

Non-probability sampling technique

Question 24

Is a form of non-probability sampling in which the researchers rely on their own judgment

Answer 24

Purposive sampling

Question 25

Provides the information of the number of occurences of distinct values distributed within a given period of time or interval

Answer 25

Frequency distribution table

Question 26

Is the most popular and well-known measure of central tendency

Answer 26

Mean/average

Question 27

Is the middle score for a set of data that has been arranged in order of magnitude

Answer 27

Median

Question 28

Is the most frequent score in the data set

Answer 28

Mode

Question 29

Is the difference between the largest and smallest values in a set of values

Answer 29

Range

Question 30

Is a quantity calculated to indicate the extent of deviation for a group as a whole

Answer 30

Standard deviation

Question 31

Is a measure of relative variability

Answer 31

Coefficient of variation

Question 32

Is a bell-shaped frequency distribution curve

Answer 32

Normal distribution

Question 33

Measured how many deviation a given value is above or below the mean

Answer 33

Z-score

Question 34

Refers to the statistical relationship between two entities

Answer 34

Correlation

Question 35

Measures the strength of the linear relationship

Answer 35

Pearson product moment correlation coefficient

Question 36

Is a non-parametric measure of the strength and direction of association that exists between two variables measured on at at least an ordinal scale

Answer 36

Spearman rank-order correlation coefficient