Tulip heights

This task is about constructing and interpreting a graph.

Mara measured the heights of the tulips in her garden to the nearest centimetre.

Below is Mara's data.  

 

Height (in cm) 21 22 23 24 25 26 27 28 29
Number of tulips 5 16 10 1 3 3 6 5 2


a)

Complete a histogram for the data and label the x-axis.
 
 
Tulip Heights

 
 
 
Using Mara's data, calculate each of the following statistics about the height of the tulips in her garden:
 
b)
 
c)
 
d)
 
e)
range __________ cm
 
mode __________ cm
 
median __________ cm
 
average (mean) __________ cm