Histograms

Question 1

What is a histogram used to represent?

Answer 1

Grouped continuous data

Question 2

What does the area of the bar proportional to in a histogram?

Answer 2

the frequency in each class

Question 3

frequency density =

Answer 3

frequency / class width

Question 4

What formula is used to calculate the height of each bar?

Answer 4

k x frequency

k = 1 is the easiest to use when drawing a histogram