<span>An increase in life expectancy and a decrease in fatal illnesses (correlation)
</span><span>An increase in the number of defects on a bolt of fabric and a decrease in the number of quality checks (causation)
</span><span>An increase in the number of movies produced in a year and growth of the pharmaceutical industry (no relationship) </span>
35 if whole number
34.7 to 1 dp
34.72 to 2dp
Y=3x+2
X=0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10
Y=2, 5, 8, 11, 14, 17, 20, 23, 26, 29, 32
Each y-value is 3+previous value