Back to Tutor Intake Assessment: Display numerical data in plots on a number line

6.SP.B.4 Tutor Intake -- Dot Plots, Histograms, Box Plots

This short check helps your tutor see where to start. Work on your own,
without a calculator. If you're unsure, give your best try — the goal is
to find what to work on together, not to grade you.

Grade 6·7 problems·~10 min·Common Core Math - Grade 6·standard·6-sp-b-4

Work through problems with immediate feedback

Concepts

A dot plot places one dot above each data value on a number
line, stacking duplicates. What is true about a dot plot that is
NOT true about a histogram of the same data?

Every individual data value can be read back from a dot plot; a histogram only gives counts per bin.

A dot plot can display thousands of data points more easily than a histogram.

A dot plot doesn't need a number-line axis.

A dot plot shows percentages instead of counts.

A student draws a histogram with small gaps between each bar,
the way a bar chart for favorite colors would look. Is this
correct for a histogram of numerical data?

No — histogram bars should touch, because the bins partition a continuous numerical axis with no gaps between them.

Yes — gaps make the histogram easier to read, just like a bar chart.

It doesn't matter — gaps or no gaps, the histogram means the same thing either way.

No — but only because histograms should never have more than 5 bars.

Procedures

A data set has these values: 51, 52, 53, 55, 56, 57, 58, 59, 60,
62. Using bins of width 5 starting at 50 — [50, 55), [55, 60),
[60, 65) — how many values fall into the bin [55, 60)?

Find Q1 (the first quartile) for this ordered data set of 9
values: 2, 4, 5, 7, 9, 10, 12, 14, 16.
(Use the exclude-median convention: for an odd count, the
overall median is excluded from both halves before finding each
half's median.)

Using the same ordered data set of 9 values: 2, 4, 5, 7, 9, 10,
12, 14, 16 — find Q3 (the third quartile), using the
exclude-median convention.

You're viewing 2 of 3 sections.

Create a free account to continue the full exercise set and save your progress.

Create free account

0 of 5 answered

Answer all problems to submit.

Was this practice set helpful?

Report a problem with this page