STATS Flashcards

(39 cards)

1
Q

collection of methods for planning experiments

A

PROBABILITY

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

values that variables can assume

A

DATA

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

characteristics that observable or measurable in every unit of universe

A

VARIABLE

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

set of all possible values of a variable

A

POPULATION

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

subgrouo of a population

A

SAMPLE

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

words that represent class or category

A

QUALITIVE VARIABLE

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

number that represent any amount or count

A

QUANTITIVE VARIABLE

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

can be counted quantitive variables

A

DISCRETE VARIABLE

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

measures by assuming value or quantitive

A

CONTINUOUS VARIABLE

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

data consisting names or values

A

NOMINAL LEVEL

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

data arranged in some orders

A

ORDINAL LEVEL

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

uses for determining meaningful amount of differences

A

INTERVAL LEEVEL

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

interval level modified to include the inherent zero strating point

A

RATIO LEVEL

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

using chance or random numbers

A

RANDOM SAMPLING

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

done bynnumbering each subject of the population and then selecting nth number

A

SYSTEMATIC SAMPLING

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

intact groyup

A

CLUSTER SAMPLING

17
Q

average of the data

18
Q

midpoint of the data

19
Q

value that most often

20
Q

distance between largest and smallest data

21
Q

central tendency

A

MEAN
MEDIAN
MODE

22
Q

square of the standard deviation of teh data

23
Q

how spread out numbers are

A

STANDARD DEVIATION

24
Q

Dispersion

A

RANGE
VARIANCE
STANDARD DEVIATION

25
field of mathematics that deals with chance
PROBABILITY
26
activity in which results cannt be oredicted with certainty
EXPERIMENT
27
repetitn of experiment
TRIAL
28
result of an experiment
OUTCOME
29
,collection of outcomes
EVENT
30
event with only one possible outcome
SIMPLE EVENT
31
sets that contain all possible outcomes of the experiment
SAMPLE SPACE
32
a numerically valued function defined over a sample spacwe
RANDOM VARIABLE
33
can nly take a finite number of distinct values
DISCRETE RANDM VARIABLES
34
infinite numbers or values in an interval between specific values
CONTINUOUS RANDOM VARIABLE
35
lisitng of all possible values of discrete random variabke along their corresponding probabilities
DISCERETE PROBABILITY DISTRIBUTION
36
mean of discrete random variabkes X
EXPECTED VALUE OF X
37
how to get mean
VALUES ( X) TIMES pROBABILITY OUTCOME P(x) THEN ADD ALL
38
how to get variance
SQUARE THE VALUES (X) THEN MULTIPLY TO p(X) ADD ALL THEN SUBTRACT MEAN SQUARED
39
how to get standard deviation
SQUARE ROOT OF VARIANCE