All the solutions provided inÂ McGraw Hill My Math Grade 1 Answer Key PDF Chapter 7 Review will give you a clear idea of the concepts.

Vocabulary Check

Complete each sentence.

bar graph
picture graph
data
survey

Question 1.
A ________________ shows data using bars.
Bar graph shows data using bars.

Question 2.
A ________________ shows data using pictures.
Picture graph shows data using pictures.

Question 3.
Another word for information is ________________.
Another word for information is data.

Question 4.
You can collect data by taking a ______________.
You can collect data by taking a survey.

Concept Check

Write the totals. Use the chart to answer the question.

Question 5.
Do more people like skipping or running?

Explanation:
I counted wrote the totals for the given tally marks.

Question 6.
Write the totals in the tally chart.

Explanation:
I counted wrote the totals for the given tally marks.

Question 7.
Use the tally chart in Exercise 6 to make a bar graph. Use the graphs above to answer the questions.

Question 8.
How many people chose dolphins?
6

Explanation:
6 people chose dolphins.

Question 9.
What sea animal got fewer than 5 votes?
Whales

Explanation:
2 people chose whales
2 < 5
So, whales got fewer votes than 5 votes.

Question 10.
How many people chose sharks and whales?
2 people chose whales
9 people chose sharks
2 + 9 = 11
So, 11 people chose sharks and whales.

Question 11.
How many students were surveyed?
15 students

Explanation:
2 students chose whales
6 students chose dolphins
9 students chose sharks
Add to find the total
2 + 6 + 7 = 15
So, 15 people were surveyed in all.

Problem Solving

Complete the tally chart.

Question 12.

Explanation:
I counted wrote the totals for the given tally marks.

Test Practice

Question 13.
Gemma counts how many glasses of water each person drinks in one day. How many glasses does her dad drink?

(A) 0
(B) 3
(C) 4
(D) 8
(C) 4

Explanation:
Gemma counts how many glasses of water each person drinks in one day
Her dad drinks 4 glasses in one day.

Reflect

Use the data to make each graph.