Description:

These assessment tasks are given as formative tasks that need to be completed within designated assessment sessions during the academic term.

Trainers/assessors may vary the data for the task for different students. Tasks may be scheduled according to classroom learning sessions and organised over a number of sessions to coincide with the relevant lessons and activities.

1. Below is a table of the selling price of bananas (B) per kilogram in dollars compared with the number sold in of kilograms (N).

B 1.50 1.98 5 6 7 8 9 12

N 250 220 180 200 190 124 67 15

(a) Draw a scatter diagram of the data.

(b) Estimate the degree of correlation

2. Below is a table is data related to hours of use of a photocopier (P) and the hours of maintenance (M)

P 70 55 125 90 140 100

M 6 4 8 6 15 6

(a) Draw a scatter diagram of the data.

(b) Estimate the degree of correlation