Stats Chapyer 3 Flashcards
(6 cards)
1
Q
Frequency polygon
A
By joining middle of top of each bar in histogram with equal class widths
2
Q
FD
A
F/CW
3
Q
Why use a histogram
A
Temperature ( variable) is continuous and data is in grouped frequency table
4
Q
Feature of bars in histogram
A
Area of bar is proportional to frequency
5
Q
A
6
Q
Standard deviation higher…
A
More spread out
