O.3

이원 도수분포표

이원 도수분포표에서 빠진 수와 행·열의 비율(%) 구하기

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Daniel Math Academy · Grade 8 Math

Two-Way Frequency Tables

Skill O.3 · Scatter plots & two-way tables · ★★☆ Medium

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Date
 
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Use the two-way table to answer each question.

Example
SoccerBasketballTotal
7th grade12820
8th grade151530
Total272350

Think: Of the 20 seventh graders, 12 chose soccer. For a percent of a row, divide by the row total; for a column, by the column total.

  1. 1
    PassedDid not passTotal
    Morning class203050
    Evening class212142
    Total415192
    What percent of the students in the evening class passed?
  2. 2
    Walks to schoolRides to schoolTotal
    Has a pet14519
    No pet282856
    Total423375
    What percent of the students without a pet ride to school?
  3. 3
    SoccerBasketballTotal
    7th grade111122
    8th grade152136
    Total263258
    What percent of the 7th graders chose soccer?
Daniel Math Academy · danielmath.comWorksheet #3yc2kvv · Page 1 / 2
Daniel Math Academy · Grade 8 Math

Answer Key

O.3 Two-Way Frequency Tables · ★★☆ Medium

  1. 1
  2. 2
  3. 3
Daniel Math Academy · danielmath.comWorksheet #3yc2kvv · Answer Key · Page 2 / 2