Linear Relations Flashcards
1
Q
Types of categorical data
A
Nominal
(Red,blue….)
Ordinal
(Low,medium…)
2
Q
Types of numerical data
A
Discrete
(1,2,3…)
Continuous
(0.34,0.42….)
3
Q
Mean
A
Sum of values
___________________
Number of scores
4
Q
Median (Q2) =
A
Middle value
5
Q
Mode=
A
Most common value
6
Q
How do you work out an outlier in single data sets
A
Less than Q1 - 1.5 x IQR
Or
More than Q3 + 1.5 x IQR
7
Q
IQR=
A
Q3 - Q1
8
Q
Range
A
Max - min
9
Q
What is standard deviation
A
How much the scores concentrate around the mean
10
Q
What is the line of best fit’s equation
A
y=mx + b
11
Q
m=
A
y2 - y1
_________
x2 - x1
12
Q
Positively skewed
A
Means tail on the right
13
Q
Negatively skewed
A
Means tail on the left
