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Example1

Title: Evaluating and Inference Sample Statistics

Grade Lesson s6-l4

Explanation: The best way to understand SAT-4 is by looking at some examples. Take turns and read each example for easy understanding.

Examples

Topics → Definition Example1 Example2

A market researcher randomly selected 200 people who had expressed that they liked a particular book. These individuals watched a movie adaptation of the book and were then asked whether they liked or disliked it. Of those surveyed, 95% reported disliking the movie. Calculate the number of people who disliked the movie.

Step: 1

Determine the total number of people surveyed: 200
Identify the percentage of people who disliked the movie: 95%

Calculate the number of people who disliked the movie:
Since 95% of the 200 people disliked the movie, convert 95% to a decimal: 95% = 0.95

Multiply the total number of people by the percentage: \$200 \times 0.95 = 190\$.

Explanation:

Therefore, the number of people who disliked the movie was 190.