4 The stem-and-leaf diagram shows the mass of 12 desert hedgehogs in two different locations.
Location A
Location B
able[[8,5,4,39,4,3,5,5,9],[9,6,6,8,,,,,],[9,6,5,40,5,8,,,],[8,5,2,41,0,3,,,],[,5,0,42,,,,,]]
Key: 4|39| means 394g
Key: 3810 means 380g
a What fraction of the hedgehogs from each location had a mass less than 400g ?
b What percentage of the hedgehogs from each location had a mass greater than 415g ?
c Which location, A or B, had the most variation in the mass of the hedgehogs?
d Work out the mean and median mass of hedgehogs for each location.
e Which location, A or B, do you think has more food available for the hedgehogs to eat? Explain your answer.
The stem-and-leaf diagram shows the mass of 12 desert hedgehogs in two different locations. Location A Location B 38 2 3 5 5 9 8 5 4 39 6 8 9 9 6 5 40 5 8 8 5 2 41 0 3
0
42
Key: 4|39 means 394 g Key: 38 |0 means 380 g a What fraction of the hedgehogs from each location had a mass less than 400 g? b What percentage of the hedgehogs from each location had a mass greater than 415 g? C Which location, A or B, had the most variation in the mass of the hedgehogs? p Work out the mean and median mass of hedgehogs for each location. e Which location,A or B,do you think has more food available for the hedgehogs to eat? Explain your answer.