(a)[1]
Plot the results for students I and J on the scatter diagram.
(b)[1]
What kind of correlation does the scatter diagram indicate?
(c(i))[1]
Draw a line of best fit on the scatter diagram.
(c(ii))[1]
Use your line of best fit to estimate the width for him.
(d(i))[2]
The teacher states that a ‘good estimator’ must have both estimates within 5 m of the actual measurements. Write down the letters of the students who count as ‘good estimators’.
(d(ii))[1]
Calculate the perimeter of the hall.
(d(iii))[2]
Calculate the length of one diagonal of the hall.
(e)[2]
Find the area of the shaded part.