Georgia Milestones Grades 6-8 Statistics and Probability. Practice it free.

Students develop understanding of statistical variability, summarize distributions, and make inferences from data. This Grades 6-8 reporting domain maps to 9 practice skills and 8 representative questions from the playable bank.

Grades 6-89 mapped skills

What the test measures

Statistics and Probability skills

Develop understanding of statistical variability
Summarize and describe distributions
Investigate patterns of association in bivariate data

Standards basis

Georgia Standards of Excellence (state-adopted content standards) — Georgia

How the Georgia Milestones reports it

Georgia Milestones is Georgia’s own statewide assessment system, aligned to Georgia’s state-adopted content standards rather than a shared national test framework. The official page says it measures knowledge and skills in the state-adopted standards for mathematics across grades 3 through high school ([Georgia Department of Education](https://gadoe.org/assessment-accountability/georgia-milestones/)).

Blueprint & weighting

Not published on the official Georgia Milestones overview page reviewed here.

Official sources

Georgia Department of Education

Practice by skill

Topics mapped to this domain

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8 free questions · 0/0 correct

Practice playeasy

The table shows quiz scores and how many students earned each score.
$\begin{array}{c|c} \text{Quiz score} & \text{Number of students} \\ \hline 62 & 2 \\ 68 & 3 \\ 74 & 5 \\ 80 & 3 \\ 86 & 3 \end{array}$

What is the median quiz score?

There are $16$ scores. Listing every score from least to greatest, the $8$ th and $9$ th values are both $74$ , so the median is $74$ .

Practice playeasy

Students answered the statistical question "How many books did you read this summer?" The data are $2, 5, 6, 9$ . What is the range of the data?

The range describes the spread: greatest value minus least value. $9 - 2 = 7$ .

Practice playeasy

Which of these is NOT a statistical question?

A statistical question anticipates variability: many people or things can give different answers. "How many pets does my family own?" asks about one family, so it has one answer. It is not a statistical question.

Practice playeasy

A runner logs five lap times, in seconds: $18$ , $20$ , $22$ , $24$ , and $26$ . A sixth lap time of $16$ seconds is added to the data set. How does this affect the mean?

The mean of the original five times is $\dfrac{18+20+22+24+26}{5}=22$ seconds. Because $16<22$ , adding $16$ pulls the mean down.

Practice playeasy

Seven game scores are $14\textsf{,}$ $18\textsf{,}$ $10\textsf{,}$ $20\textsf{,}$ $12\textsf{,}$ $15\textsf{,}$ and $23\textsf{.}$ What is the mean score?

Mean $= \dfrac{14 + 18 + 10 + 20 + 12 + 15 + 23}{7} = \dfrac{112}{7} = 16$ .

Practice playeasy

Find the mean of the data set 3, 8, 10.

Mean $= \dfrac{3+8+10}{3} = 7$ .

Practice playeasy

The practice times, in minutes, for five days are $35\textsf{,}$ $15\textsf{,}$ $20\textsf{,}$ $40\textsf{,}$ and $25\textsf{.}$ What is the median practice time?