Unit 2 Quiz Review

Question 0

Inference

Answer 0

A conclusion about the population based on sample data.

Question 1

Population vs Sample

Answer 1

The group being studied is called the population a selection of individuals taken from the population is the sample.

Question 2

Cross-Sectional study

Answer 2

A study that considered individuals from different groups at the same time.

Question 3

Longitudinal Study

Answer 3

A study of a single group (Sample) over a long time to recognize change over time.

Question 4

Time series data

Answer 4

Data that have accumulated over a long time.

Question 5

Quantitative

Answer 5

Numerical data

Question 6

Qualitative

Answer 6

Non numerical data

Question 7

Discrete data

Answer 7

Data that is in integral values (Easily countable).

Question 8

Continuous Data

Answer 8

Data resulting from the measure of quantity (Decimals).

Question 9

Simple random sampling

Answer 9

All selections must be equally likely

All combinations of selections must be equally likely

Everyone has a chance

Question 10

Systematic random sampling

Answer 10

Fixed percent of population

Random starting point (individual household) they select every nth individual

Question 11

Stratified random sampling

Answer 11

Divided into groups called strata (geographic area, age)

A random sample of strata is take

Question 12

Cluster random sampling

Answer 12

Population organized into groups (schools , communities)

A random group is chosen and surveyed (All of them surveyed)

Question 13

Multi-staged random sampling

Answer 13

A population out into groups

A random sample of groups is chosen then take info

50% 50% example

Question 14

Destructive sampling

Answer 14

Samples that can’t be reintroduced into the population

Example (lightbulb test)

To test products

Product is destroyed

Question 15

Primary data

Answer 15

Data that is collected on your own (Survey)

Question 16

Secondary data

Answer 16

Data collected from another source

Question 17

Open ended questions

Answer 17

Respondents reply in their own words

Question 18

Closed ended questions

Answer 18

Respondents are given a limited number of responses from which they choose

Question 19

Good questions

Answer 19

Relevant
Simple
Readable
Specific

Question 20

Good questions should avoid

Answer 20

Negative
Jargon
Abbreviations
Insensitivity
Leading respondent

Question 21

Bias

Answer 21

An unintended influence on data-gathering method.(Unfair)

Question 22

Sampling bias

Answer 22

When the chosen sample does not accurately represent the population.

Question 23

Non-response bias

Answer 23

When the results are influenced because surveyed are not returned.
Or the answer you provide is invalid.

Question 24

Household Bias

Answer 24

When one type of respondent is overrepresented because groupings of different sizes are polled equally (or underrepresented)

Question 25

Response bias

Answer 25

Factors in the sampling method that influences the result.

Question 26

Spreadsheet

Answer 26

A list of colums and rows that contain data.

Question 27

Mind map

Answer 27

A set of rectangle or ovals that contain your thought processes on a specific topic.

Question 28

Thesis question

Answer 28

1. State population 2. variables must be stated 3. correlation expected must be clear 4. rational (reason you think what you think)

Question 29

Gender bias

Answer 29

Bias caused because one gender is more likely to answer a question correctly more than the other gender.