McGraw Hill My Math Grade 2 Chapter 9 Answer Key Data Analysis

All the solutions provided in McGraw Hill My Math Grade 2 Answer Key PDF Chapter 9 Data Analysis will give you a clear idea of the concepts.

McGraw-Hill My Math Grade 2 Answer Key Chapter 9 Data Analysis

Essential Question

How can I record and analyze data?
Answer: Firstly, Set the given data in an order and then arrange them in an informative order for analyzing the data. This can be helpful in all types of problems.

Explanation:
A data set is a collection of numbers or values that relate to a particular subject.
Data analysis is the practice of working with data to get useful information.

Am I Ready?

Circle the group that has more.

Question 1.
McGraw Hill My Math Grade 2 Chapter 9 Answer Key Data Analysis 1
Answer: The first group has 7 cats and the second group has 5 cats
So, the first group has more cats than second group.

Explanation:
McGraw Hill My Math Grade 2 Chapter 9 Answer Key Data Analysis.1

Use the tally chart to answer the questions.
McGraw Hill My Math Grade 2 Chapter 9 Answer Key Data Analysis 2

Question 2.
What pet has 4 tally marks?
Answer: Hamster has 4 tally marks

Explanation:
Given, cat has 3 tally marks and a dog has 2 tally marks
Then, Hamster has 4 tally marks

Question 3.
How many people like cats?
___________ people
Answer: 3 people like cats as their favorite pets

Explanation:
As shown in the table above, only cat column has 3 tally marks
so, 3 people like cats as their favorite pets

Use the picture to solve.

Question 4.
Roy walks four dogs every day. How many brown dogs does he walk?
McGraw Hill My Math Grade 2 Chapter 9 Answer Key Data Analysis 3
___________ brown dogs
Answer: He walks 2 brown dogs

Explanation:
As shown in the figure , Roy walks four dogs every day
Two of them are white and  other two are brown.
So, He walks 2 brown dogs

My Math Words

Review Vocabulary

compare
graph
tally marks

Use the review words to describe each example.
McGraw Hill My Math Grade 2 Chapter 9 Answer Key Data Analysis 4
What is a graph?
Answer: A graph is a structure amounting to a set of objects in which some pairs of the objects are in some sense “related”.

Explanation:
McGraw Hill My Math Grade 2 Chapter 9 Answer Key Data Analysis.2
In this example, There are 5 tally marks
There are more red balloons than yellow balloon
The graph will be, McGraw Hill My Math Grade 2 Chapter 9 Answer Key Data Analysis.3

My Vocabulary Cards

McGraw Hill My Math Grade 2 Chapter 9 Answer Key Data Analysis 5

Teacher Directions: Ideas for Use

  • Have students group 2 or 3 common words. Ask them to add a word that is unrelated to the group. Have them work with a friend to name the unrelated word.
  • Have students write a tally mark on each card every time they read the word in this chapter or use it in their writing.

McGraw Hill My Math Grade 2 Chapter 9 Answer Key Data Analysis 6
Answer: The detailed explanation is given below

Explanation:
Numbers or symbols that show information is Data
McGraw Hill My Math Grade 2 Chapter 9 Answer Key Data Analysis.6
A graph that uses bars to show data is Bar graph
McGraw Hill My Math Grade 2 Chapter 9 Answer Key Data Analysis.4
A graph used to show how often a certain number occurs in data is Line plot
McGraw Hill My Math Grade 2 Chapter 9 Answer Key Data Analysis.8
Tells what or  how many each symbol stands for is Key
McGraw Hill My Math Grade 2 Chapter 9 Answer Key Data Analysis.7
To collect data by asking the people same question  is Survey
McGraw Hill My Math Grade 2 Chapter 9 Answer Key Data Analysis.5
A graph that has different pictures to show information collected is Picture graph
McGraw Hill My Math Grade 2 Chapter 9 Answer Key Data Analysis.9

McGraw Hill My Math Grade 2 Chapter 9 Answer Key Data Analysis 7
Teacher Directions: More Ideas for Use

  • Ask students to group like ideas they find throughout the chapter, such as using different ways to display data. Have students share the strategies they use to understand the concepts.
  • Have students use a blank card to write this chapter’s essential question. Have them use the bock of the card to write or draw examples that help them answer the question.

McGraw Hill My Math Grade 2 Chapter 9 Answer Key Data Analysis 8
Answer:  The detailed explanation is given below

Explanation:
Marks used in a survey to collect data is Tally marks.
McGraw Hill My Math Grade 2 Chapter 9 Answer Key Data Analysis.11
A letter or figure that stands for something is Symbol.
McGraw Hill My Math Grade 2 Chapter 9 Answer Key Data Analysis.10

My Foldable

Follow the steps on the back to make your Foldable.
McGraw Hill My Math Grade 2 Chapter 9 Answer Key Data Analysis 9
McGraw Hill My Math Grade 2 Chapter 9 Answer Key Data Analysis 10
McGraw Hill My Math Grade 2 Chapter 9 Answer Key Data Analysis 11

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