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POE UNIT 4: Statistics & Probability Flashcards | StudBud
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POE UNIT 4: Statistics & Probability
POE UNIT 4: Statistics & Probability
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Answers
1
What is descriptive statistics?
The score that occurs most frequently in a distribution.
Mode
Numbers that summarize data in an efficient manner.
The average of the distribution of scores for a variable.
2
Relative frequency is expressed as a number between 0 and 1.
False
True
3
Standard deviation is...
Third root of the variance
Fourth root of the variance
Fifth root of the variance
Square root of the variance
4
As the number of trials increases, relative frequency and probability will ...
Frequency and probability are not related to each other
Get further apart
Become more equal
Stay the same
5
What is the probability of NOT drawing the Ace of Spades in a deck of 52 cards?
1.9 %
.019
.98
98
6
Statistics can help you to argue a claim
False
True
7
What is NOT a component of probability?
Sample Space
Hypothesis
Experiment
Event
8
....Calculates a conditional probability, based on all the ways the condition might have occurred.
Bernouli's
Bye, Bye, Bye
Bays
Bayes
9
Represents a parameter, not a statistic. It gives researchers an amount of dispersion of data.
Probability Standard Deviation
Population Standard Deviation
Floyd Standard Deviation
Sample Standard Deviation
10
What is statistics about?
Organizing data
All of the above
Interpreting data
Analyzing graphs
11
What is probability of rolling a 4 and a 5 and a 9 on a single die?
0.17
0.50
Impossible
0.0046
12
Statistics and Probability
1
3
2
4
13
For Probability:
AND (multiplication) OR (addition) NOT (1-P(A))
AND (addition) OR (multiplication) NOT (1-P(A))
OR (multiplication) AND (addition) NOT (1-P(A))
AND (multiplication) OR (addition) NOT (P(A)-1)
14
Why are histograms useful?
They are useful for making inferences
All of the above
They help you see trends
They help you analyze data
15
Pulling student names out of a hat is an example of ______________ sampling.
Random
Stratified
Systematic
Organized
16
What is the calculated likelihood that a given event will occur?
Populationability
Probability
Problemability
Possibility
17
Statistics and Probability
2
1
3
4
18
Which of these are measures of Central Tendency?
Mode
Range
Mean
Median
19
Inferential Statistics generalize and evaluate a population based on sample data
False
True
20
What is the probability of rolling a 4 or a 6 or a 9 on a single die?
Impossible
.83
.0046
0.5
21
Mean can be defined as:
The middle number of a collection numbers
The highest number minus the lowest number
The average of a collection of numbers
The most amount of a number in a collection of numbers
22
Which method is used to determine probability?
Empathic
Objective
Procedural
Theoretical
23
What is statistics?
Collection, evaluation, and interpretation of data
Measurement of independent and interdependent selfconstruals
The amount of tax per unit
Collection of input and output values
24
Which method of determining probability uses known elements?
Luck
Theoretical
Subjective
Empiracal
25
Which of the following is NOT an example of the Binomial Process
Flipping a coin
Magic eight ball
Rolling die
Getting a 10 then a 5 in a deck
26
What's the purpose of using standard deviation
To help identify outliers in a set of numbers
To find out what numbers we can consider normal
All of the answers are correct.
To see how numbers relate to each other
27
Random, Systematic, Stratified, Cluster, Convenience are all types of
Simplified
Sampling
Statistics
Populations
28
What is the mode of the following data set: 92, 100, 22, 92, 72, 73, 89, 92, 22
0
92
22
100
29
Statistics and probability
2
1
4
3
30
Probability is expressed as a number between 1 and 2.
True
False
31
Which Probability Components do we use in POE to solve a problem?
Experiment, Probability, Event, Outcome/Sample Point
Experiment, Sample Space, Event, Outcome/Sample Point
Expected Outcome, Sample Space, Event, Actual Outcome/Sample Point
Experiment, Sample Space, Event, Statistics
32
Find the mean of: 12, 15, 9, 3, 4, 60
103
17.16
51.5
16.17
33
Statistics are ________ evidence
Mummified
Classified
Quantified
Electrified
