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Prob & Stat - Ch. 1 - 5 Flashcards | StudBud
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Prob & Stat - Ch. 1 - 5
Prob & Stat - Ch. 1 - 5
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StudBud Administration
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Mean, Median, Mode and Range L1 and L2 Functional Skills
Flashcards
40 cards
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Practice quiz
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Questions
40
Answers
1
What is statistics?
all of the above
interpreting data
organizing data
analyzing graphs
2
Compound Events
1/36
1/72
4/6
1/1296
3
What is statistics?
How likely something is to happen
a push or pull
Gathering and Analyzing data
4
Collection and analysis of vital statistics began in the 17th century in...
United States
France
England
China
5
How do you calculate the range?
middle value
add then divide
highest minus lowest
most common
6
Find the expected value of the probability distribution below.
2.94
2.16
1.47
1.21
7
Sample Spaces for Compound Events
1
3
4
2
8
What is the Probability Distribution
Function of Decimal
Function of Probability
Function of Fraction
Function of Discrete Variable
9
This graph is skewed...
Left
Right
10
Does the problem involve permutations or combinations? Do not solve.
A
B
11
The "ratio" level of measurement has an absolute zero.
True
False
12
To be successful in statistics, how often will you need to complete your homework?
when you have time
twice a week
whenever it is assigned
once a week
13
Identify the level of measurement: Gender
Ordinal
Nominal
Interval
Ratio
14
The mean of a probability distribution is often also called this...
Expected range
Expected value
Expected mean
Expected deviation
15
Why are you enrolled in statistics?
heard it was an easy class
will be valuable in my future
I didn't have another choice
I like Math
16
Qualitative data is:
numerical observations
non-numerical observations
whole number observations
non-integer data
17
Define descriptive statistics
a number that indicates the average score of something
arrangement of data that shows how a score occurs
The listing and summarizing of data in an efficient way
None of the above
18
Determine the type of probability distribution
hypergeometric
uniform
binomial
geometric
19
Identify the level of measurement: Number of Years at Job
Interval
Nominal
Ordinal
Ratio
20
What does "Data Analysis, Statistics and Probability" mean?
Statistical measures
Probabilistic reasoning
Something you learn in high school Geometry
Interpreting categorical and quantitative data
21
What is the mode of 2, 6, 8, 4, 6, 1, 10?
6
4
10
8
22
Random variable of a probability distribution is the theoretical average of the variable is?
Variance
Standard Deviation
Probability distributions
Expected Value
23
Which is the mode?
7
8
6
10
24
Which qualitative measures match the histogram?
Spread of aproximately 100, unimodal, skewed slightly left
None of the above!
Skewed slightly right, small gap, bell-shaped
Small gap, bimodal, skewed slightly left
25
What are Dependent Events?
A first event does effect the outcome of a second event.
A first event does not effect the outcome of a second event.
26
Independent events are what???
if event A does not affect event B
event B's probability is dependent on event A's occurrence
No one thing is independent of everything else.
Gah
27
Which level of measurement have no mathematical interpretation?
Nominal
Ordinal
Ratio
Interval
28
Which of the following is NOT one of the 5 key statistics?
Maximum
Median
Lower Quartile
Range
29
Name ALL the levels of measurement.
Population & Sample
Nominal, Ordinal, Interval, Ratio
Descriptive & Inferential
Parameter & Statistics
30
What is the range of 2, 6, 8, 4, 6, 1, 10?
6
9
8
4
31
Binomial probability distribution is a distribution with independent or dependent trials?
dependent
independent
32
Is the following a discrete probability distribution?
Yes
No
33
This graph is skewed...
Right
Left
34
How many levels of measurement are there?
2
4
3
6
35
Name the four levels of measurement.
None of the above
Gender, Religion, Color, and quality
Nominal, Ordinal, Interval, and Ratio
Categories, temperature, ranking, and ratings
36
Qualitative or quantitative property?
Colour
Quantitative
Qualitative
37
Three measures of central tendency are _____,_____, and ______.
mode
mean
outlier
median
38
Does the problem involve permutations or combinations? Do not solve.
B
A
39
How do you calculate the median?
highest take away lowest
middle value
add then divide
most common
40
What is the mean of 2, 3 and 7?
5
4
3
12
