Interpreting categorical data · seed 1 · A4, ink-friendly. The answer key prints on its own page for grown-ups.

How many in each group?

Mathematics · Data & Statistics · ages 6-8
Name ______________________   Date ____________

  1. Your favorite color is categorical data.

    Circle one:   True   False

  2. Seven students voted for their favorite color. 2 chose red, 3 chose blue, and 2 chose green. How many students voted in all?

    Answer: ______________

  3. The chart shows pets children have: Dogs 4, Cats 6, Fish 2. How many children have cats?

    Dogs4Cats6Fish2
    • 4
    • 6
    • 2

  4. A chart shows Red 4, Blue 4, Green 2. Red and Blue have the same number.

    Circle one:   True   False

  5. The graph shows how many music lessons Mrs. Linz taught today. Piano: 12 lessons. Drum: 2 lessons. Guitar: 5 lessons. Which sentence is true?

    • She taught 10 more piano lessons than drum lessons.
    • She taught 2 more piano lessons than drum lessons.
    • She taught more drum lessons than piano lessons.
    • She taught 12 more guitar lessons than drum lessons.

  6. A chart shows books read: Mia 4, Leo 7, Zoe 2. Who read the most, and how many?

    Mia4Leo7Zoe2
    • Mia, 4
    • Leo, 7
    • Zoe, 2

  7. Seven students voted for their favorite color, and red won. Which set of votes could be right?

    • 1 red, 2 blue, 2 green, 2 yellow
    • 3 red, 2 blue, 1 green, 1 yellow
    • 2 red, 2 blue, 2 green, 2 yellow
    • 1 red, 1 blue, 1 green, 4 yellow

  8. A graph shows the favorite colors of 7 students: red 4, blue 2, green 1. How many fewer students like green than red?

    Answer: ______________

  9. Sam says the total of Chocolate 5, Vanilla 7, and Strawberry 3 is 12, because he only added Chocolate and Vanilla. What is the correct total?

    • 12
    • 15
    • 10

  10. A chart shows stickers: Stars 6, Hearts 9, Circles 3. How many more hearts are there than the group with the fewest stickers?

    Stars6Hearts9Circles3

    Answer: ______________

LightMySky · lightmysky.comW1-mt_1VSfm9yiLn-s1

Answer key

For grown-ups. Fold this page away before handing over the rest.

How many in each group? W1-mt_1VSfm9yiLn-s1

  1. True · Categorical data sorts things into groups, and a favorite color is one of those groups.
  2. 7 · Add the votes in every group to get the total.
  3. 6 · Look at the Cats bar. It shows 6.
  4. True · Both Red and Blue show 4, so they match.
  5. She taught 10 more piano lessons than drum lessons. · Subtract the smaller group from the bigger group to find how many more.
  6. Leo, 7 · Leo's bar is the tallest, showing 7 books.
  7. 3 red, 2 blue, 1 green, 1 yellow · The votes must add to 7, and red must have more votes than any other color.
  8. 3 · Compare the two groups by taking the smaller number away from the bigger one.
  9. 15 · Add all three groups, not just two: 5 + 7 + 3 = 15. Sam left strawberry out.
  10. 6 · Circles has the fewest, 3. Hearts has 9. 9 minus 3 is 6 more.
Worksheet · LightMySky