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Beschreibung
Karteikarten von snowflakex, aktualisiert more than 1 year ago
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Erstellt von snowflakex
vor fast 10 Jahre
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| Frage | Antworten |
| What are the two types of quantitative data? | discrete (ungrouped) and continuous (grouped) |
| What is Data frequency? Relative frequency? Cumulative frequency? | Data Frequency: number of times data has been recorded on a tally R.F frequency/total frequency C.F: sum of the frequency from lowest to highest (add them from 0 to 100 example idk) |
| What are the 4 types of graphs? | Bar graphs Histograms Frequency polygons Circle graphs |
| 4 steps to group data? | 1) range: highest number - lowest number 2) create intervals 3) find frequencys 4) represent the data by graphs |
| What is Index (Indices)? | It is a base value used to compare the values of a collective group of variables |
| CPI??? | Consumer price index: used to measure and monitor retail prices of goods and services. |
| Inflation: meaning and equation | Meaning; when prices of goods and services go up, the value of money decreases Equation: final value x initial value /initual value (all multiply by 100) |
| List the 7 sampling techniques | Simple random convenience Systematic Voluntary Cluster Stratified Multi Stage |
| What is simple random sampling? | every member of a population has an equal chance of selection. Selection of people will not affect those who were not selected |
| What is Systematic Sampling? | selelction is done using intervals example: choosing every 10th person from 100 students equation: population size/sample size |
| What is stratified and Cluster sampling? (the difference) | Stratified Sampling: members share a common characteristic like age, gender, race, ethnic group etc. AKA strata Cluster sampling: (more specifc than stratified) when u select random representatives of a certain group of population - example: muslim community is stratified. Elderly in muslim community is cluster. |
| What is multi-stage sampling? | several levels of RANDOM sampling example: Canada -> ON -> Toronto -> Mississauga -> Dundas Street -> Neighborhood 3232-3275 |
| - What is Voluntary response? - convenience sampling? | - V.R: when the population has an option to participate in the survey (the researcher is inviting members to do it) - C.S: selected population for information because it is easily accessible |
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