Cracking The SAT Premium

2.The   forecasted  monthly sales   of  Always  Sunny   Sunscreen   are presented   in  the figure

above.  For which   period  are the forecasted  monthly sales   figures strictly    decreasing

then    strictly    increasing?

A) January  to  March

B) February to  April

C) June to  August

D) September    to  November

Here’s How to Crack It

Look up the values for each period in question and use Process of Elimination to get rid of those that don’t
fit. For (A), January sales are forecasted to be $2 million, February $2.5 million, and March $2 million.
This is an increase then a decrease, not the other way around, so eliminate (A). For (B), you already
know sales decreased from February to March, so check for a following increase in April. The figure for
April is $3.5 million, which is an increase over the March figure, so (B) is correct.

The Bar Graph (or Histogram)

Instead of showing a variety of different data points, a bar graph will show how many items belong to a
particular category. If the variable at the bottom is given in ranges, instead of distinct items, the graph is
called a histogram, but you read it the same way.

Here’s How to Read It

The height of each bar corresponds to a value on the vertical axis. In this case, the bar above Chile hits
the line that intersects with 15 on the vertical axis, so there are 15 million people in Chile. Again, watch