(a(i))[1]
“The scatter diagram shows positive correlation.” Is this statement true or false? Explain your answer.
(a(ii))[1]
Circle this point on the scatter diagram.
(a(iii))[1]
Sketch a line of best fit on the scatter diagram.
(a(iv))[1]
Use your line of best fit to estimate the cost of this journey.
(b(i))[1]
Calculate how much Arit pays when they divide the cost equally.
(b(ii)(a))[2]
Simplify the ratio $12 : 3 : 7.5$ to its lowest terms.
(b(ii)(b))[3]
Calculate how much extra Arit pays compared with an equal split.
(c)[3]
Calculate the value of the investment after 6 years. Give your answer correct to the nearest dollar.