How do you find relative frequency?

frequency divided by total # of observations

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Fall 2018 MARB303 Exam 1

25 termsStudBud Administration24 plays

Lectures 1-4

Flashcards25 cardsFPractice quizPHost liveL

Questions 25

Answers

1
Examples of graphs and figures?
histograms and contour plots
bar plots and line graphs
all of the above
pie charts and scatter plots
2
What is statistics?
Science about data
Latin for "state"
All of the above
Study about data
3
When is Biostats Tutoring?
all of the above
Wednesday 6-8 pm
Monday 8-10 pm
Tuesday 4-6 pm
4
Statistical tests assume ________ __________.
inferential statistics
random sampling
non-probability sampling
probability sampling
5
What is this?
variable
table
data
dataset
6
Which one is negative skewed?
b
d
c
a
7
What is the most frequently used measure of central tendency?
median
mode
range
arithmetic mean
8
What are categorical variables?
ordinal and continuous
nominal and ordinal
nominal and discrete
ordinal and discrete
9
What is a nominal variable?
isolated on the number line
forms an interval
ordered and mutually exclusive
no order or magnitude
10
What is an example of a parameter?
s2
p
μ
r
11
What is a variable?
values vary over time
something we can measure
all of the above
logical group of characteristics
12
Samples should be ________ of the population
representative
all
some
most
13
Why should you study statistics?
a and b
to be a smart "information consumer"
because you have to
competent on job market
14
How do you find relative frequency?
count number of observations in category
frequency divided by total # of observations
divide frequency by mean
add total counts together
15
What is data visualization?
shows main features of data
communicate data and information in graphics
makes data more accessible and understandable
all of the above
16
What is your lab section?
403
402
404
17
What is the formula for range?
ymax-ymin
ymin-ymax
18
What are characteristics of population of interest?
none of the above
statistics
roman letters
parameters
19
What is the coefficient of variation?
sample mean/mode
sample mean/standard deviation
standard deviation/sample mean
population mean/median
20
What is represented by the circle?
maximum value
whisker
outliers
minimum value
21
Descriptive Statistics consists of central tendency and variability of data.
false
true
22
Which is true about your exam "cheat" sheet?
MUST be handwritten
all of the above
CANNOT be typed
can be front and back
23
What is a statistical population?
subset of interest
entire group of individuals
organisms belong to same species
organisms live in same geographical location
24
Define the p-th percentile
(p-100)% below it
(100-p)% above it
(p-100)% above it
p% above it
25
What is good about finding the median?
easily manipulated
unaffected by outliers
uses all the data
more stable

Fall 2018 MARB303 Exam 1 Flashcards | StudBud

Fall 2018 MARB303 Exam 1

25 termsStudBud Administration24 plays

Lectures 1-4

Flashcards25 cardsFPractice quizPHost liveL

Questions 25

Answers

1
Examples of graphs and figures?
histograms and contour plots
bar plots and line graphs
all of the above
pie charts and scatter plots
2
What is statistics?
Science about data
Latin for "state"
All of the above
Study about data
3
When is Biostats Tutoring?
all of the above
Wednesday 6-8 pm
Monday 8-10 pm
Tuesday 4-6 pm
4
Statistical tests assume ________ __________.
inferential statistics
random sampling
non-probability sampling
probability sampling
5
What is this?
variable
table
data
dataset
6
Which one is negative skewed?
b
d
c
a
7
What is the most frequently used measure of central tendency?
median
mode
range
arithmetic mean
8
What are categorical variables?
ordinal and continuous
nominal and ordinal
nominal and discrete
ordinal and discrete
9
What is a nominal variable?
isolated on the number line
forms an interval
ordered and mutually exclusive
no order or magnitude
10
What is an example of a parameter?
s2
p
μ
r
11
What is a variable?
values vary over time
something we can measure
all of the above
logical group of characteristics
12
Samples should be ________ of the population
representative
all
some
most
13
Why should you study statistics?
a and b
to be a smart "information consumer"
because you have to
competent on job market
14
How do you find relative frequency?
count number of observations in category
frequency divided by total # of observations
divide frequency by mean
add total counts together
15
What is data visualization?
shows main features of data
communicate data and information in graphics
makes data more accessible and understandable
all of the above
16
What is your lab section?
403
402
404
17
What is the formula for range?
ymax-ymin
ymin-ymax
18
What are characteristics of population of interest?
none of the above
statistics
roman letters
parameters
19
What is the coefficient of variation?
sample mean/mode
sample mean/standard deviation
standard deviation/sample mean
population mean/median
20
What is represented by the circle?
maximum value
whisker
outliers
minimum value
21
Descriptive Statistics consists of central tendency and variability of data.
false
true
22
Which is true about your exam "cheat" sheet?
MUST be handwritten
all of the above
CANNOT be typed
can be front and back
23
What is a statistical population?
subset of interest
entire group of individuals
organisms belong to same species
organisms live in same geographical location
24
Define the p-th percentile
(p-100)% below it
(100-p)% above it
(p-100)% above it
p% above it
25
What is good about finding the median?
easily manipulated
unaffected by outliers
uses all the data
more stable