Math Problem Statement

Goran wants to find the average time it takes Central High School students to run a lap around the track. So he will consider 32 students to find the average time. (a) Which unit(s) could be used for the unit of measurement? Check all that apply: - Feet - Inches - Hours - Meters - Seconds (b) Which of the procedures below would be the best way to find the average time? - Ask for 32 volunteers to run a lap and have them state their times. - Measure the times of 32 volunteers who run a lap. - Randomly pick 32 students to run a lap and measure their times. - Randomly pick 32 students to run a lap and have them state their times.

Solution

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Goran wants to find the average time it takes Central High School students to run a lap around the track. He will consider 32 students to find the average time.

Questions:

(a) Which unit(s) could be used for the unit of measurement? Check all that apply:

  • Feet
  • Inches
  • Hours
  • Meters
  • Seconds

(b) Which of the procedures below would be the best way to find the average time?

  • Ask for 32 volunteers to run a lap around the track and have them state their own times.
  • Measure the times of 32 volunteers who run a lap around the track.
  • Randomly pick 32 students to run a lap around the track and measure their times.
  • Randomly pick 32 students to run a lap around the track and have them state their own times.

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Math Problem Analysis

Mathematical Concepts

Data collection
Average calculation

Formulas

Average = Total time / Number of students

Theorems

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Suitable Grade Level

Grades 6-8