Unfamiliar fieldwork

Question 1

What is the mean?

Answer 1

all data together divided by number of values

Question 2

What is the median?

Answer 2

data in numerical order and find the middle

Question 3

What is the mode?

Answer 3

most common number

Question 4

What is the range?

Answer 4

highest minus smallest number

Question 5

What is the interquartile range?

Answer 5

upper quartile minus lower quartile

Question 6

Why is interquartile range better than normal range?

Answer 6

removes extreme values

Question 7

Why are averages useful?

Answer 7

• remove risk of anomalies
• see trend
• compare

Question 8

What is the advantage of choropleth map?

Answer 8

spot general trends

Question 9

What is the disadvantage of choropleth map?

Answer 9

not useful for showing total values

Question 10

Advantage of isoline

Answer 10

compare areas of equal value

Question 11

Disadvantage of isoline

Answer 11

difficult to read if lines close together

Question 12

Advantage of dot and proportional symbol maps

Answer 12

interpret general trends

Question 13

Disadvantage of dot and proportional symbol maps

Answer 13

clustering makes hard to read

Question 14

Difference of bar chart and histogram

Answer 14

bar chart categories
histogram range

Question 15

Advantage bar chart and histogram

Answer 15

comparison

Question 16

Disadvantage bar chart and histogram

Answer 16

does not show causes of trends

Question 17

Advantage line graph

Answer 17

multiple data sets

Question 18

Disadvantage line graph

Answer 18

hard to read if too much plotted

Question 19

Advantage pictogram

Answer 19

interpret

Question 20

Disadvantage pictogram

Answer 20

not for continuous data

Question 21

Advantage pie chart

Answer 21

display parts of whole

Question 22

Disadvantage pie chart

Answer 22

cannot show trends

Question 23

Advantage divided bar chart

Answer 23

see trends

Question 24

Disadvantage divided bar chart

Answer 24

additional explanation required

Question 25

Advantage scatter graph

Answer 25

line of best fit for correlation

Question 26

Disadvantage scatter graph

Answer 26

line of best fit analysis is subjective

Question 27

Advantage dispersion graphs

Answer 27

sport anomalies comparison

Question 28

Disadvantage dispersion graphs

Answer 28

time consuming analyse

Question 29

Advantage flow and desire line

Answer 29

connections

Question 30

Disadvantage flow and desire line

Answer 30

overlapping hard to read

Question 31

Advantage population pyramid

Answer 31

comparison

Question 32

Disadvantage population pyramid

Answer 32

only shows population at one time

Question 33

Enquiry question

Answer 33

trying to answer with fieldwork

Question 34

Data collection methods

Answer 34

way data is collected

Question 35

Data presentation methods

Answer 35

graphs used to present data

Question 36

accurate conclusions

Answer 36

trustworthy results from data

Question 37

reliable conclusions

Answer 37

enough data to trust results

Question 38

river data advantage

Answer 38

compare downstream

Question 39

river data disadvantage

Answer 39

current makes inaccurate

Question 40

pebble data advantage

Answer 40

impacts of erosion

Question 41

pebble data disadvantage

Answer 41

bias in collecting pebbles

Question 42

questionnaire advantage

Answer 42

understand opinions

Question 43

questionnaire disadvantage

Answer 43

timely to analyse lying

Question 44

environmental quality survey advantage

Answer 44

variety of factors score

Question 45

environmental quality survey disadvantage

Answer 45

subjective and biased

Question 46

counting advantage

Answer 46

busy/popularity

Question 47

counting disadvantage

Answer 47

miscount easily

Question 48

How to make results accurate and reliable?

Answer 48

- more data - more questions - consult with others avoid bias - different times/seasons

Question 49

How to make results representative?

Answer 49

- more sites - more people - different times/seasons

Question 50

random sampling adv

Answer 50

not biased large area

Question 51

random sampling disadv

Answer 51

clustering inaccessible

Question 52

systematic sampling adv

Answer 52

representation easy to follow

Question 53

systematic sampling disadv

Answer 53

time consuming biased inaccessible

Question 54

stratified sampling adv

Answer 54

flexible comparison

Question 55

stratified sampling disadv

Answer 55

not for questionnaire biased