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Cogito

Grade 6 Math · Chapter 9 · Lesson 3

Practice Worksheet

Dot Plots and Histograms

Two ways to show the same data.

10 problems · about 18 minutes · 6.SP.B.4

NameDate

Figure — use these to answer the problems

Set how many fall in each group and read the shape.
0 to 93
10 to 197
20 to 294
0 to 93
10 to 197
20 to 294
Figure 1

Warm-Up Review

From earlier lessons. Loosen up before the new work.

3 problems

  1. From “Centre and Spread”

    What is the mean of 6, 8, and 13?

    Answer

  2. From “What Makes a Question Statistical”

    Is "How many siblings does each child in the club have?" statistical?

    • Yes.
    • No.

  3. From “Finding a Missing Edge”

    Volume 72, length 6, width 3. Height?

    Answer

Warm Up

Straightforward practice. Get the method working first.

3 problems

  1. Bars of 2, 5 and 6. How many values in all?

    Answer

  2. Bars of 3, 7 and 4. How many values in all?

    Answer

  3. In bins of ten, which bin does 25 fall into? Give the lowest value.

    Answer

Build It Up

The same ideas with more to keep track of.

2 problems

  1. Can you read an individual value off a histogram?

    • No. Binning hides them.
    • Yes.

  2. Which suits 200 values spread from 0 to 100?

    • A histogram.
    • A dot plot.

Stretch Yourself

Mixed problems. Work out what kind of question it is before you start.

2 problems

  1. The Bin

    In bins of ten, which bin does 14 fall into? Give the lowest value of that bin.

    Answer

  2. The Repeat

    On a dot plot, three children scored 8. How tall is the stack above 8?

    Answer