Unit 8, Lesson 1

Representing Data

Accelerated 6

Practice

Problem 1

Here is a list of questions about the students and teachers at a school. Select all the questions that are statistical questions.

What is the most popular lunch choice?
What school do these students attend?
How many math teachers are in the school?
What is a common age for the teachers at the school?
About how many hours of sleep do students generally get on a school night?
How do students usually travel from home to school?

Problem 2

A teacher draws a line segment that is 20 inches long on the blackboard. She asked each of her students to estimate the length of the segment and uses their estimates to draw this dot plot.

Dot plot, estimated length in inches, 15 to 22 by ones. Beginning with 16, the number of dots above each increment is 1, 3, 1, 5, 5, 3.

How many students are represented in the dot plot?
Are students generally accurate in their estimates of the length of the line? Explain your reasoning.

Problem 3

Here are descriptions of data sets. Select all descriptions of data sets that could be graphed as dot plots.

Class size for the classes at an elementary school
Colors of cars in a parking lot
Favorite sport of each student in a sixth-grade class
Birth weights for the babies born during October at a hospital
Number of goals scored in each of 20 games played by a school soccer team

Problem 4

Priya records the number of attempts it takes each of 12 of her classmates to successfully throw a ball into a basket. Make a dot plot of Priya’s data.

Problem 5

ForLesson 20: Solving Equations with Rational Numbers

Solve each equation.

\((8.5) \boldcdot (\text-3) = a\)

\((\text-7) + b = (\text-11)\)

\(c - (\text-3) = 15\)

\(d \boldcdot (\text-4) = 32\)

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