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Home > CC1 > Chapter 3 > Lesson 3.1.1 > Problem 3-19

3-19.

Jing Ya takes the bus across town to school each morning. Last week, he timed his trips and found that the time varies day to day. The times (in minutes) are listed below. Homework Help ✎

15, 10, 11, 13, 11

  1. If you had to use one number to tell someone how long it took Jing Ya to get to school, what would you say?

    Try arranging the times in order and choosing one which is in the middle or appears most often.

    11 or 12 minutes. Sometimes it takes Jing Ya longer to get to school, and sometimes shorter.
    However, a typical trip to school will take 11 or 12 minutes.

  2. Jing Ya does not want to be late. If he needs to get to school by 8:00 a.m. each day, what is the latest time he should get on the bus (assuming one is waiting for him at any given time)? Explain how you got your answer.

  • It may help to look at the longest amount of time it took Jing Ya to get to school.