1. a. $12 million
b. 1st quarter 1999
c. 3rd quarter 1997
d. 3rd quarter is winter, too cold for ice cream!
e. 1st quarter is summer and hot. People eat more ice cream.
f. Looking at first quarter sales: 1997-$16 million, 1998-$18 million and 1999-22 million obviously an increasing pattern.
g. $15 million

2. a.

b. The graph show a pattern of increasing number of issues towards the end of each week.

This is probably because people have more time to watch videos.


3. a.

b. The trend indicates that New Zealand's population is increasing steadily.

Prediction for 1986 is around 3.5 million.