Claims, Studies and Experiments on the Digital SAT: the Desmos Method
Every question here is a rate applied to a group. Your job is to work out which rate and which group, and then let Desmos do the whole calculation on one line so no rounding and no half-finished arithmetic ever gets written down.
Problem Solving & Data Analysis·65 practice problems in DesPrep
The Claims, Studies and Experiments lesson is part of DesPrep
It is one of the 17 full lessons inside the subscription — 7 sections that take claims, studies and experiments from first principles to the fastest Desmos route, with a worked example on every one:
- Two halves, and Desmos only does one of them
- A percent is a multiplier, not a number of people
- Scaling a sample up to the whole group
- How far the conclusion is allowed to reach
- Comparing two groups: rates, not counts
- Same rate, different sizes
- What the second group still has to deliver
Then 65 practice problems on this skill alone, solved inside a live Desmos calculator with step feedback and an expert replay on every one.
More Problem Solving & Data Analysis guides
- Scatterplots and ModelsGraph a line of best fit and read predictions straight off it, instead of substituting by hand.
- Ratios, Rates, Proportions and UnitsTurn a rate into a line and read any proportional value off it in seconds.
- PercentagesPercent change and growth, set up so Desmos does the arithmetic and the graph shows the trend.
- Distributions, Center and SpreadMeans, medians and ranges computed in the Desmos list bar rather than on paper.