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Ch.11 Collecting & Representing Data

Last updated over 2 years ago
20 questions
1

Which of the following is a good example of a hypothesis?

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When doing a statistical study, it is important to keep the goal of the study in mind.

Representative samples give us the best information about the distribution of the population as a whole, but sometimes a representative sample won't work for the goal of a study!

For example, suppose you want to study how discrimination affects people in your town. Surveying a representative sample of people in your town would give information about how the population generally feels, but might miss some smaller groups.

Describe a way you might choose a sample of people to address this question.

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What does it mean for a sample to be representative of the population?

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Calculate the MEAN & MODE of this set of data: 24, 32, 15, 28, 32, 75, 21, 15, 41, 32, 15, 82

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Calculate the MEDIAN & RANGE of this set of data: 32, 41, 43, 48, 57, 62, 69, 74, 78, 90, 101

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During lunch, students were comparing how far their bus rides are to school each day. The distances, in miles, were: 8, 3, 6, 4, 6, 5, 6, 7, 2, 4, 6, and 8. Which of the following statements is true?

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A public interest group is calling households asking, “Do you support the governor’s plan to provide better, higher paying jobs to hard-working families?” Is the question biased? Explain your answer.

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How well do you know mean, median, mode, and range?
Match the word on the left to the definition on the right.

  • Mean
  • Median
  • Mode
  • Range
  • the numerical average of the data given
  • the middle of the set after the set is in numerical order
  • the value(s) that occur the most often; possible none, and range is the spread of the data.
  • the spread of the data
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Based on the table below, find the mean number of pets.

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What is the median number of pets?

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What is the mode for the number of pets.

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What is the range for the number of pets?