Histograms Flashcards
1
Q
The area of the bar tells us the
A
frequency
2
Q
vertical axis on a histogram is
A
frequency density
3
Q
the equation for histograms
A
height (frequency density) = area (frequency) / class width
4
Q
How to estimate the mean/average
A
get the middle of the class width and multiply that by the frequency, the add them all up and divide them by the number of objects/ things involved
5
Q
if the table has class widths that dont touch draw them touched in the point unused – i.e. 10…11
A
10.5
