Statistics

Question 1

Descriptive stats

Answer 1

organising, summarising and describing data

Question 2

variables can either be on scale of.

Answer 2

Discrete to continuous. organismic to environmental.

Question 3

discrete variable

Answer 3

variable that can only take one category

Question 4

continuous variable

Answer 4

variables that can take any point on a scale

Question 5

Organismic variable

Answer 5

variables that relate to humans

Question 6

environmental variable

Question 7

LoM

Answer 7

Level of measurment

Question 8

nominal data

Answer 8

about identity, categories, list, one category or another

Question 9

ordinal data

Answer 9

nominal data which can be orders or put in a series without interval

Question 10

interval data

Answer 10

ordinal data with intervals in series

Question 11

ratio data

Answer 11

where there is an absolute zero possible in data so a ratio between data can be found

Question 12

Systeme internatioonale

Answer 12

international system of units

Question 13

System internatioonale units

Answer 13

seconds, meters, kilograms, amps, kelvin, cd, mole

Question 14

how to record systematic international units

Answer 14

lower case, non italicised, non plural, space between number and unit

Question 15

Features of normal distribution curve

Answer 15

asymptotic(never reaches 0), symmetrical, naturally occuring

Question 16

point on a normal distribution where cure goes from convex to concave

Answer 16

standard deviation

Question 17

Adavntages of mode

Answer 17

resistant to outliers, can be used for any level of measure

Question 18

disadvantages of mode

Answer 18

sub groups can have great affect. Is a terminal statstic

Question 19

advantages of median

Answer 19

not affected greatly by outliers. can be used for most levels o measure

Question 20

disadvantages of median

Answer 20

ignores values just takes rank into account

Question 21

advantages of mean

Answer 21

takes into account value. weighted mean can be takes

Question 22

disadvantages of mean

Answer 22

only used in interval and ratio data. requires normal distribution

Question 23

Kurrtosis

Answer 23

how in favour of the mean a normal distribution curve it

Question 24

mesokurtic

Answer 24

normal distribution

Question 25

lepokurtic

Answer 25

mean has a higher frequency

Question 26

platykurtic

Answer 26

shallower curve

Question 27

Z score

Answer 27

way of expressing your individual score in relativeness to class