Flashcards in Statistics - Test 1 Deck (15):

0

## Statistic

### numerical fact/measure collected from sample data

1

## Parameter

### numerical fact/measure collected from population data

2

## Census

### collecting information from an everyday member of a population

3

## Representative Sample

### a sample that has all/almost all of the characteristics of the population

4

## Random sampling

### sample drawn in a way that each member of the population has an equal chance of being selected

5

## Data Set

### the whole collection of data from a population or sample

6

## Quantitative - Discrete

###
variables with countable values

only assume whole values with nothing in between

7

## Quantitative - Continuous

### variables that can assume any value in one or more intervals

8

## Relative frequency

### Number in category/ all of the values added together

9

## Cumulative relative frequency

### Everything from the beginning up to that category/ all values added

10

## Midpoint

### Two values added/2

11

## Range

### Largest - smallest

12

## Chebyshev - given interval to find percent

###
U - M/SD or L - M/SD

then

1-1/k^2

13

##
Empirical rule - bell shaped curves ONLY

- given interval, find %

###
1SD (68%) = M +/- 1 * SD

2SD (95%) = """""" 2 """"

3SD (99.7%) = """" 3 """"

14