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One-variable data: Distributions and measures of center and spread SAT question

Math · Problem-Solving and Data Analysis · Easy · Answer it here, explanation included.

  • The data for the 5 categories are as follows: 
    • 1: More than halfway above 25 students
    • 2: Less than halfway above 30 students
    • 3: More than halfway above 35 students
    • 4: About halfway above 40 students
    • 5: About halfway above 45 students

A group of students voted on five after-school activities. The bar graph shows the number of students who voted for each of the five activities. How many students chose activity ?

ExplanationShow

Choice B is correct. The height of each bar in the bar graph given represents the number of students that voted for the activity specified at the bottom of the bar. The bar for activity has a height that is between and . In other words, the number of students that chose activity is between students and students. Of the given choices, is the only value between and . Therefore, students chose activity .

Choice A is incorrect and may result from conceptual errors.

Choice C is incorrect. This is the number of students that chose activity , not activity .

Choice D is incorrect and may result from conceptual errors.

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