48. the manager at a theme park surveys visit...
48. the manager at a theme park surveys visitors who ride the roller coaster on saturday and determines that 30% are first - time visitors to the park. which statement is true? a the sample is representative of the population because it includes all visitors to the theme park. b the sample is representative of the population because it shows that exactly 30% of the roller coaster riders are first time visitors to the theme park. c the sample may not be representative of the population because it only includes roller coaster riders on saturday. d the sample shows that on saturdays, exactly 30% of the visitors are first time visitors to the theme park.
Answer
# Brief Explanations:
A representative sample should accurately reflect the characteristics of the entire population. In this case, surveying only roller - coaster riders on Saturday is a biased sample as it doesn't represent all visitors to the theme park. Option A is wrong because it doesn't include all visitors. Option B's reasoning about the 30% figure doesn't make the sample representative. Option D over - generalizes based on a non - representative sample. Option C is correct as the sample is limited to roller coaster riders on Saturday and thus may not be representative of the whole population of theme park visitors.
# Answer:
C. The sample may not be representative of the population because it only includes roller coaster riders on Saturday.