School tests

This task is about identifying the mean, median, mode and range, and drawing a stem-and-leaf graph.

Ben recorded his friends' results in the end-of-term tests as percentages.

  
   Spelling Maths English Soc. Studies Science Health
Ben 90% 100% 80% 93% 91% 89%
Alex 100% 75% 80% 78% 94% 96%
Jo 69% 52% 90% 70% 83% 86%
Hiria 90% 100% 95% 85% 94% 100%
Hone 80% 85% 83% 85% 83% 96%
Rachel 75% 62% 70% 75% 53% 85%
 
a)
 
What is the mean percentage for English? __________%
 
b)
 
What is the mode for Health? __________%
 
c)
 
What is the median percentage for Maths? __________%
 
d)
 
What was Hone's mean percentage for the 6 results? __________%
 
e)
 
In the space below draw a stem and leaf graph for the subject with the greatest range.
    

 
Subject: __________