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Prob/Stat Chapter 1
Vocabulary
| Question | Answer |
|---|---|
| Statistics | the study of how to collect, organize, analyze, and interpret numerical imformation from data |
| Individuals | people or objects included in the study |
| Variable | the characteristic of the individual to be measured or observed |
| Quantitative variable | has a value or numerical measurement for which operations such as addition or averaging make sense |
| Qualitative variable | describes an individual by placing the individual into a category or group such as male or female |
| Population data | variable is from every individual of interest |
| Sample data | variable is from only some of the individuals of interest |
| Descriptive statistics | involves methods of organizing, picturing, and summarizing information from samples or populations |
| Inferential statistics | involves methods of using information from a sample to draw conclusions regarding the population |
| Nominal | We can put the data into categories |
| Ordinal | We can order the data from worst to best |
| Interval | We can order the data and also take the differences between the data values. Does not include zero |
| Ratio | We can order the data, take differences, and also fine the ratio between data values. Does include zero |
| Census | measurements or observations from the entire population are used |
| Sample | measurements or observations from a representative part of the population should be used |
| Observational study | observations and measurements of individuals are conducted in a way that doesn't change the response or the variable being measured |
| Experiment | a treatment is deliberately imposed on the individuals in order to observe a possible change in the response or variable being measured |
| Control group | group that receives a dummy treatment disguised as the real treatment |
| Confounding variables | variables taht might be an underlying cause of a change in response in the experiment group |
| Randomization | used to assign individuals to the treatment groups |
| Replication | reduces the possibility that the differences in pain relief for the two groups occured by chance alone. |
| Statistics | the study of how to collect, organize, analyze, and interpret numerical imformation from data |
| Individuals | people or objects included in the study |
| Variable | the characteristic of the individual to be measured or observed |
| Quantitative variable | has a value or numerical measurement for which operations such as addition or averaging make sense |
| Qualitative variable | describes an individual by placing the individual into a category or group such as male or female |
| Population data | variable is from every individual of interest |
| Sample data | variable is from only some of the individuals of interest |
| Descriptive statistics | involves methods of organizing, picturing, and summarizing information from samples or populations |
| Inferential statistics | involves methods of using information from a sample to draw conclusions regarding the population |
| Nominal | We can put the data into categories |
| Ordinal | We can order the data from worst to best |
| Interval | We can order the data and also take the differences between the data values. Does not include zero |
| Ratio | We can order the data, take differences, and also fine the ratio between data values. Does include zero |
| Census | measurements or observations from the entire population are used |
| Sample | measurements or observations from a representative part of the population should be used |
| Observational study | observations and measurements of individuals are conducted in a way that doesn't change the response or the variable being measured |
| Experiment | a treatment is deliberately imposed on the individuals in order to observe a possible change in the response or variable being measured |
| Control group | group that receives a dummy treatment disguised as the real treatment |
| Confounding variables | variables taht might be an underlying cause of a change in response in the experiment group |
| Randomization | used to assign individuals to the treatment groups |
| Replication | reduces the possibility that the differences in pain relief for the two groups occured by chance alone. |
Created by:
fikeswimguy
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