2. The dot plots show the amounts of time that ten South African students and ten
Australian students took to get to school. Without calculating, answer the questions.
South Africa +++
0 10
20
30
40
50
60
Australia + + + + + + + + + + + + +
0 10 20 30 40 50 60
travel time in minutes
Which data cat has the smaller mean? Explain your reasoning.

What is the range of the relation in the table below? x y –2 0 –1 2 0 4 1 2 2 0

Acompany manufactures large valves, packed in boxes. a shipment consists of 1500 valves packed in 75 boxes. each box has the outer dimensions 1.2 x 0.8 x 1.6 m and the inner dimensions 1.19 x 0.79 x 1.59 m. the boxes are loaded on a vehicle (truck + trailer). the available capacity in the vehicle combination is 140 m3. each valve has a volume of 0.06 m3. - calculate the load factor on the box level (%). - calculate the load factor on the vehicle level (%). - calculate the overall load factor (%).

For the sequence [tex]a_{n} = 2n/(n+1)[/tex], what is the value of [tex]a_{10}[/tex]