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Stats Ch. 1 Vocab
| Question | Answer |
|---|---|
| Statistics is: | the study of data and variations in the data |
| Descriptive statistics are statistics that are____ | more exact |
| With inferential statistics, we _____ | infer what's going to happen with population based on the sample |
| The population is the ____ | complete collection of objects or individuals that we are studying |
| What is a sample? | the subset of a population |
| ____ are data values that represent the entire population. | parameters |
| ____ are values calculated from a sample. | statistics |
| _____ sample is used when it is difficult or impossible to draw a a random sample. | convenience |
| With the ________, you have an equal chance to being selected. This sample is analogous to winning the lottery. | simple random sample |
| ___ sample is when the population is first divided into sub-populations, then a simple random sample is drawn from each sub-population. | stratified |
| ___ sample is a method where we randomly select entire groups. | cluster |
| ____ sample is where we select a starting point randomly and then select individuals in evenly spaced intervals, every 3rd or 5th one. | systematic |
| We obtain this sample by asking people to give a response. | voluntary response |
| This type of variable is numerical and how much or how many of something there is. | quantitative |
| What are the 2 types of quantitative variables? | discrete & continuous |
| This type of variable divides individuals into categories. | qualitative aka categorical |
| This type of quantitative variable are values that can be listed and will fall on a point on a number line. | discrete |
| This type of variable has an infinite number of possible values and can be averaged. | continuous |
| What are the 3 types of qualitative variables? | ordinal, nominal and identifier |
| These variables have a natural sense of order, they can be numerical or verbal. | ordinal |
| These variables do not have a natural order. | nominal |
| ____ bias is when the response is left up to the individual. | voluntary |
| When the person conducting a study has an interest in the outcome is called _____ bias. | self-interest |
| ___ is when the individual may not respond truthfully because they feel that their answer may not be acceptable or the person asking may judge them, | social acceptability |
| The ____ variable has a unique value assigned to each individual. | identifier |
| Questions that are worded to be leading or confusing are called ____ bias. | leading question |
| If we don't have enough responses to be valid, this is called ___ bias. | nonresponse |
| ___ bias is when a sub-population is not included in the study. (mistake in sample has been made) | sampling |
Created by:
Mariahj25
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