Types and display of data

Question 1

define the likert scale

Answer 1

when a progressive set of options is assigned a value

eg: rate x from 1-5

Question 2

define nominal data

Answer 2

categories ar assigned a value as a name

Question 3

define interval data

Answer 3

data with which the gaps between values can be gauged and measured

Question 4

define raito data

Answer 4

there is an absolute zero snd data can be compared as it is definite

Question 5

define ordinal data

Answer 5

categories are assigned clearly but the space in-between the categories is undefined

Question 6

what kind of average is used to for stat analysis when using normally distributed data

Answer 6

the mean

Question 7

what is used to for stat analysis when using abnormally distributed data

Answer 7

the median

Question 8

describe a normal distribution

Answer 8

a bell shaped curve with the mode mean and median situated on the peak of the curve

Question 9

describe a negative skew

Answer 9

when the mean is skewed to the negative values and the mode is skewed to the right (higher values) of the x axis.

Question 10

describe a positive skew

Answer 10

the mean is skewed to the right and the mode to the left of the x axis

Question 11

describe a bimodal distribution

Answer 11

two peaks are present due to there being two modes

Question 12

describe a J shaped distribution

Answer 12

an exponential growth that does not decline

Question 13

describe an inverted U shaped curve

Answer 13

similar to normal distribution but the peak is lower and the data is more spread- looks squashed

Question 14

describe a rectangular distribution

Answer 14

the peak is reached via a vertical rise, it then plateaus and maintains this shape for a while, the fall is also vertical