Histograms

Question 1

The area of the bar tells us the

Answer 1

frequency

Question 2

vertical axis on a histogram is

Answer 2

frequency density

Question 3

the equation for histograms

Answer 3

height (frequency density) = area (frequency) / class width

Question 4

How to estimate the mean/average

Answer 4

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

Question 5

if the table has class widths that dont touch draw them touched in the point unused – i.e. 10…11

Answer 5

10.5