Data And Spread (Stats) Flashcards
(11 cards)
1
Q
How to work our lower quartile?
A
Q¹ = n/4
2
Q
How to work out upper quartile?
A
Q³= (3×n)/4
3
Q
How to work out percentile?
A
Px = ((x) x n ) /100
4
Q
Mean in frequency table
A
Sum of fx / sum of f
5
Q
Range
A
Highest value - lowest value
6
Q
Intequartile range
A
Q³ - Q¹
7
Q
Mode
A
The number which appears the most
8
Q
Median
A
The middle value in ascending order
9
Q
What is variance?
A
Square measure
10
Q
What is standard deviance?
A
Square root of variance
11
Q
standard deviance equation
A
