Welcome to SAT Practice Test 1: 98 Questions
This Digital SAT practice test contains 98 questions divided into Reading and Writing and Math.
Select one answer for each question. Each correct answer is worth 1 point; incorrect answers are worth 0 points.
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Researchers recruited 240 student volunteers to study a review app. The volunteers were randomly assigned either to use the app for 10 minutes or to review the same lesson with ordinary notes for 10 minutes. Both groups then took the same quiz, and the app group had a significantly higher mean score. Which conclusion is best supported by this study?
The equation of a circle is x^2 + y^2 - 8x + 6y = 12. From the point P(10, 5), a tangent segment is drawn to the circle. What is the length of the tangent segment?
A random sample of 625 residents produces an estimated proportion with a margin of error of 4 percentage points. A second random sample of 2,500 residents is taken from the same population using the same method and produces a similar estimated proportion. Approximately what margin of error should be expected for the second estimate?
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