methods of display

Question 1

2 types of data categories and there 2 subsets

Answer 1

qualitative - ordered (S, M, L) and unordered (M or F)

quantitative - discrete and continuous

Question 2

how can you present qualitative data and which is better

Answer 2

bar or pie chart

pie chart harder to interpret

Question 3

quantitative graphical representations

Answer 3

histogram, dot plot, box plot( shows q1 q3 median and outliers), scatter plot(good for comparison)

Question 4

dependent variable (response)

Answer 4

variable that is being tested and measured

Question 5

independent variable (explanatory)

Answer 5

the variable the examiner changes

Question 6

relationship between independent and dependent variables

Answer 6

how changing the independent variable or the condition of the independent variable influences the dependent variable

Question 7

q1 and q3 and the median

Answer 7

q1 = (n+1)/4
q2 = 3(n+1)/4
median= (n+1)/2
lets say q1 gives you 2.5 that means its the 2.5th value if they were all in order

Question 8

IQR

Answer 8

q3-q1