Week 6 + Lab 2: Data Classification Flashcards by Jessica Dulay

What is the term for this definition:

= the extent to which attributes (eg. land cover) correspond to their real world counterparts

a) accuracy
b) precision

a) accuracy

How well did you know this?

Not at all

Perfectly

What is this an example of:
=29% vs 30%
=July 1987 vs August 2018

a) accuracy
b) precision

a) accuracy

How well did you know this?

Not at all

Perfectly

What is the term for:
=the detail with which attributes are represented
= 29% vs 29.423408%
=July 1987 vs July 27th 1987 @ 10:33

a) accuracy
b) precision

b) precision

How well did you know this?

Not at all

Perfectly

What is the term for this definition?
=inherent nature of feature

a) quantitative
b) qualitative

b) qualititative

How well did you know this?

Not at all

Perfectly

True or false:

The Golf Course is an example of a Qualitative measurement?

True

How well did you know this?

Not at all

Perfectly

What is the term for this definition:
=measured value

a) quantitative
b) qualitative

b) quanititative

How well did you know this?

Not at all

Perfectly

True or False

The meters above sea level is an example of a Qualitative Measurement

False, it is Quantitative

How well did you know this?

Not at all

Perfectly

What is the term for this description:

=descriptive, categorical

a) Nominal
b) ordinal
c) interval
d) ratio

a) Nominal

How well did you know this?

Not at all

Perfectly

What is the term for this description:

=ranking: objects/events arranged as “greater than” or “less than”

a) Nominal
b) ordinal
c) interval
d) ratio

b) ordinal

How well did you know this?

Not at all

Perfectly

What is the term for this description:

=order of + distance between observations
- no absolute zero as starting point

a) Nominal
b) ordinal
c) interval
d) ratio

c) interval

How well did you know this?

Not at all

Perfectly

What is the term for this description:

=similar to “interval” but has a known absolute starting point

a) Nominal
b) ordinal
c) interval
d) ratio

d) ratio

How well did you know this?

Not at all

Perfectly

What level of measurment only includes Mode for Math?

a) Nominal
b) ordinal
c) interval
d) ratio

a) nominal

How well did you know this?

Not at all

Perfectly

what level of measurement only includes Median and Mode for Math?

a) Nominal
b) ordinal
c) interval
d) ratio

b) ordinal

How well did you know this?

Not at all

Perfectly

What level of measurement includes these mathematical properties:
+, -, median, mode, mean

a) Nominal
b) ordinal
c) interval
d) ratio

c) interval

How well did you know this?

Not at all

Perfectly

What level of measurement includes complete arithmetic possible (including x + /)

a) Nominal
b) ordinal
c) interval
d) ratio

d) ratio

How well did you know this?

Not at all

Perfectly

What is this an example of:
=land cover
- wheat, soybean, water

a) Nominal
b) ordinal
c) interval
d) ratio

a) nominal

How well did you know this?

Not at all

Perfectly

What is this an example of:
=Low, Med, High
- income
-wildfire risk

a) Nominal
b) ordinal
c) interval
d) ratio

Study These Flashcards

c) ordinal

What is this an example of:

deg C/F
Time (CE)

a) Nominal
b) ordinal
c) interval
d) ratio

Study These Flashcards

c) interval

What is this an example of:
- k temp scale
(600K is 2x as warm as 300K)
- number of people

a) Nominal
b) ordinal
c) interval
d) ratio

Study These Flashcards

d) ratio

What classification technique “splits data into classes of equal ranges”

a) equal interval
b) equal frequency (quantiles)
c) St. dev
d) natural breaks

Study These Flashcards

a) equal intervals

What classification technique “divides data into classes w/ equal numbers of observations in each class”?

a) equal interval
b) equal frequency (quantiles)
c) St. dev
d) natural breaks

Study These Flashcards

b) equal frequency (quantiles)

What classification technique "establishes class boundaries according to St. Dev from the mean"
- rule of thumb: 3 St. Dev above/below mean

a) equal interval
b) equal frequency (quantiles)
c) St. dev
d) natural breaks

Study These Flashcards

c) St. Dev

What Classification technique " ranks order data, places class breakpoints at breaks in data continuum"
- clusters similar values

a) equal interval
b) equal frequency (quantiles)
c) St. dev
d) natural breaks

Study These Flashcards

d) natural breaks

What classification technique is best used for continuous datasets?
- eg. temp, precipitation

a) equal interval
b) equal frequency (quantiles)
c) St. dev
d) natural breaks

Study These Flashcards

a) equal interval

What classification technique is best used for evenly distributed data across a range? - excels at empahasizing the relative position of the data values - good for comparision a) equal interval b) equal frequency (quantiles) c) St. dev d) natural breaks

b) equal frequency (quantiles)

What classification technique is best used for data that conforms to a normal distribution? -shows departure from the overall average in (near) normally distributed datasets a) equal interval b) equal frequency (quantiles) c) St. dev d) natural breaks

c) St dev

What classification technique is best used with unevenly distributed data but not skeqwed towards either end of the distribution? - good to find similarities and dissimilarities between them? a) equal interval b) equal frequency (quantiles) c) St. dev d) natural breaks

d) natural breaks

What field stores - no decimals Range: -32 000 --> +32 000 a) short b) float c) long d) text

a) short

What field stores: -no decimals Range: -2 billion --> +2 billion a) short b) long c) float

b) long

What field stores: - decimal numbers -scientific notation Range: -1.2 x 10^38 --> +1.2 x 10^38 a) short b) long c) float

c) float

What field stores: - a series of alphanumeric symbols eg. street names, text descriptions a) long b) float c) text

c) text

Precision = 5, what is the correct number a) 55 55 b) 599 c) 99 999 d) 999.999

c) 99 999 Precision is the total number of digits for numeric fields --> number of characters

Scale = 3, what is the correct number? a) 3.33 b) .999 c) 3.93 d) 999

b) .333 Scale is the number of digits that are decimals

Precision is 5 and Scale is 3, what number is correct? a) 55.55 b) 99.999 c) 9.999 d) 99 999

b) 99.999

What is the term for this definition? =amount of variation in a data set from the mean? a) mean b) variance c) st. dev d) range

b) varience

What is the term for this definition? = the square root of varience? a) median b) range c) st. dev

c) st. dev

T/F A small St.Dev indicates that the data is grouped closel around the mean

True

T/F A small St. Dev indicates that the data is spread across a large range

False, that is Large St.Dev

Name the classification technique that has this problem =certain datasets may fall into 1 or 2 classes =skewed data and outliers can have empty classes a) Equal Interval b) Equal Frequency (quantiles) c) St. Dev d) Natural Breaks

a) equal interval

``` Name the classification technique that has this problem =features w/in the same class can have very different values =can make data seem like it has a wider difference -> small range data can be put into different classes ``` a) Equal Interval b) Equal Frequency (quantiles) c) St. Dev d) Natural Breaks

b) Equal frequency (quantiles)

Name the classification technique that has this problem =skewed data may get empty classes a) Equal Interval b) Equal Frequency (quantiles) c) St. Dev d) Natural Breaks

c) St. Dev

Name the classificaName the classification technique that has this problem - can make classes that have widely varying number ranges - can be difficult to compare 2+ maps (since class ranges are specific to each dataset) - may not see comparison a) Equal Interval b) Equal Frequency (quantiles) c) St. Dev d) Natural Breaks

d) Natural Breaks

Week 6 + Lab 2: Data Classification Flashcards

(42 cards)