ISIP Math Grades 6-8 Statistics and Data Analysis Practice

ISIP Math Grades 6-8 Statistics and Data Analysis. Practice it free.

The Statistics and Data Analysis domain for grades 6-8 involves answering statistical questions and drawing conclusions based on information about populations. This involves organizing data, measuring it quantitatively, and making inferences based on patterns and distribution. This also includes measures of center (mean, median, mode, range). This Grades 6-8 reporting domain maps to 9 practice skills and 8 representative questions from the playable bank.

Grades 6-8SDA9 mapped skills

Statistics and Data Analysis skills

Answer statistical questions and draw conclusions about populations

Organize data and make inferences based on patterns and distribution

Apply measures of center (mean, median, mode, range)

Standards basis

National Council of Teachers of Mathematics (NCTM) domains and Curriculum Focal Points; Common Core State Standards Initiative; state standards from California, Florida, New York, Texas, and Virginia; Texas Essential Knowledge and Skills (TEKS) for Personal Financial Literacy — national

How the ISIP Math reports it

ISIP Math is an Istation adaptive assessment built on a blended content framework rather than a single external testing consortium. Its technical report says the item bank draws from NCTM domains, Common Core State Standards, and multiple state standards, with Texas TEKS specifically governing personal financial literacy. The technical report also enumerates an NCTM-derived list of reasoning domains (number sense, operations, algebra, geometry, measurement, data analysis, plus probability/statistics, ratios and proportional relationships, and PFL); the operational reporting domains students are scored on, however, are the grade-banded set published on Istation's 'Math Domains and Skills' help page and reproduced in this coverage_map.

Blueprint & weighting

Istation publishes no per-domain item-percentage blueprint for ISIP Math; it is a computer-adaptive assessment whose item selection is driven by student ability rather than a fixed-form domain distribution.

Official sources

Istation ISIP Math Technical Report
Istation ISIP Math Help Page
Istation Math Domains and Skills (help center)

8 free questions · 0/0 correct

Practice playeasy

A clinic recorded customer wait times, in minutes, for $16$ visits. The frequency table shows the results.
$\begin{array}{c|c} \text{Wait time (min)} & \text{Number of customers} \\ \hline 2 & 2 \\ 5 & 3 \\ 8 & 2 \\ 11 & 6 \\ 14 & 3 \end{array}$

What is the median wait time?

Expand to $16$ wait times: $2, 2, 5, 5, 5, 8, 8, 11, 11, 11, 11, 11, 11, 14, 14, 14$ . The $8$ th and $9$ th values are both $11$ , so the median is $11$ minutes.

Practice playeasy

A student logs five daily page counts: $20$ , $25$ , $30$ , $35$ , and $40$ . A sixth day with $45$ pages read is added to the data set. How does this affect the mean?

The mean of the original five counts is $\dfrac{20+25+30+35+40}{5}=30$ pages. Because $45>30$ , adding $45$ pulls the mean up.

Practice playeasy

The practice times, in minutes, for five days are $18\textsf{,}$ $22\textsf{,}$ $30\textsf{,}$ $20\textsf{,}$ and $35\textsf{.}$ What is the mean practice time?

Mean $= \dfrac{18 + 22 + 30 + 20 + 35}{5} = \dfrac{125}{5} = 25$ .

Practice playeasy

Find the mean of the data set 1, 4, 4, 7, 9.

Mean $= \dfrac{1+4+4+7+9}{5} = 5$ .

Practice playeasy

Seven game scores are $90\textsf{,}$ $70\textsf{,}$ $82\textsf{,}$ $75\textsf{,}$ $95\textsf{,}$ $60\textsf{,}$ and $88\textsf{.}$ What is the median score?

In order, the values are $60\textsf{,}$ $70\textsf{,}$ $75\textsf{,}$ $82\textsf{,}$ $88\textsf{,}$ $90\textsf{,}$ $95\textsf{.}$ The median is the middle value, $82\textsf{.}$

Practice playeasy

Jaden lists four questions:

• What is my dog's weight?
• How much do the dogs at the animal shelter weigh?
• How old is my teacher?
• How tall is my desk?

How many of the four are statistical questions?

A statistical question anticipates variability. Asking how much the dogs at the animal shelter weigh asks about a group, so the weights can differ. Asking about one dog, one teacher, or one desk has a single answer. That makes $1$ statistical question.

Practice playeasy

In a random sample of 20, 7 were voters favoring the plan. Estimate how many of 100 are favoring in the whole population.

Proportion $= \dfrac{7}{20}$ . Estimate $= \dfrac{7}{20} \times 100 = 35$ .

Practice playeasy

A trend line for the number of car washes a club holds $x$ and the club's funds $y$ in dollars is $y = 75x + 120$ . According to the line, how many dollars did the club have before holding any car washes?

At $x = 0$ , $y = 120$ dollars: the $y$ -intercept is the starting amount.

ISIP Math Grades 6-8 Statistics and Data Analysis. Practice it free.

Statistics and Data Analysis skills

Answer statistical questions and draw conclusions about populations

Organize data and make inferences based on patterns and distribution

Apply measures of center (mean, median, mode, range)

Topics mapped to this domain

Central Measures from Tally Charts (ACT)

Mean change from data set edits

Mean from a data list

Measures of center and variability

Median from a data list

Identifying Statistical Questions

Sampling and inference

Scatterplots and trend lines

Two-way tables

8 free questions · 0/0 correct

Turn statistics and data analysis into game time.

More Grades 6-8 domains