In Microsoft Excel, to draw attention to a specific marker in a line chart, drop in a thin line, think of it as a marker.

We’d like you to draw your guess for every income level on the chart below. If you think the chances of enrolling in college (or vocational school) are about the same for everyone, you should ...

For this chart, the data were initially calculated relative to a 1981 to 2010 baseline and offset by 0.69°C, which is the best estimate difference for the 1850-1900 period cited by the UN ...