Unseen fieldwormk

Question 1

define random sampling

Answer 1

each member of the population have an equal chance of being chosen

Question 2

define systematic sampling

Answer 2

samples are chosen in a regular way e.g. every 2 metres, every 10th person etc

Question 3

define stratified sampling

Answer 3

sample broken down into sub groups e.g. residents and non-residents

Question 4

define primary data

Answer 4

information that you have collected yourself e.g. questionnaire, land use survey

Question 5

define secondary data

Answer 5

information someone else has previously collected e.g. from the internet, census data, crime statistics

Question 6

examples of data collection equiptment (4)

Answer 6

quadrat,ranging poles,callipers,trundle wheel

Question 7

define discrete data

Answer 7

data with clear spaces between values e.g. pedestrian counts

Question 8

define continuous data

Answer 8

data that falls in a continuous sequence e.g. temperature

Question 9

examples of quantitative data presentations (5)

Answer 9

pie charts,bar charts,histograms,line graphs, pictograms

Question 10

define quantitative data

Answer 10

to do with numbers and statistics

Question 11

define qualitative data

Answer 11

to do with words and meanings

Question 12

Examples of qualitative data presentations (2)

Answer 12

word clouds, annotated photos

Question 13

give an advantage of word clouds

Answer 13

can be useful to present analysis findings from a questionnaire, can show perceptions of an area

Question 14

give an advantage of annotated photos

Answer 14

highlights points from images to help underpin the enquiry

Question 15

give a disadvantage of word clouds

Answer 15

no in depth analysis or comparisons

Question 16

give a disadvantage of annotated photos

Answer 16

overlapping lines can be hard to understand, can be biased as the student selects parts to photograph

Question 17

what is a GIS?

Answer 17

geographical information systems, use of maps to digitally combine data and link to positions on a map

Question 18

how are GIS plotted?

Answer 18

using the recorded coordinate of the location you can plot data on the map

Question 19

advantages of GIS (2)

Answer 19

can show multiple information on map, enables you to look for patterns/links

Question 20

disadvantages of GIS (2)

Answer 20

some software can be complicated, too many layers can be difficult to see

Question 21

what are measures of central tendency?

Answer 21

mean,mode,median,range

Question 22

what are dispersion graphs used for?

Answer 22

to show a range of data