Practice the questions of McGraw Hill Math Grade 8 Answer Key PDF Lesson 23.1 Bar Graphs to secure good marks & knowledge in the exams.
McGraw-Hill Math Grade 8 Answer Key Lesson 23.1 Bar Graphs
Exercises
INTERPRET
Question 1.
On the bar graph, which hair color is the least common?
Answer:
Red hair color is the least common among all hair colors.
Explanation:
Number of students for red hair color =Â 3.
Number of students for black hair color = 9.
Number of students for brown hair color = 6.
Number of students for blond hair color = 4.
Question 2.
In which two months did the company lose money?
Answer:
April and May are the two months the company lost the money.
Explanation:
Profit of company in Jan month = 2 to 154.
Sales of company in Jan month = 610 to 154.
Profit of company in Feb month = 2 to 100 in between.
Sales of company in Feb month = 100 to 458.
Profit of company in Mar month = 140 to 600.
Sales of company in Mar month = 140 to 610.
Profit of company in April month = Less than 2 n below.
Sales of company in April month = 2 to 320.
Profit of company in May month = 2 to 154 in between.
Sales of company in May month = Less than 2 to -150.
Profit of company in June month = 2 to 80.
Sales of company in June month = 80 to 470.
Question 3.
What months had the most and least sales?
Most _______________
Least _______________
Answer:
Most sales – December month.
Least sales – July month.
Explanation:
Sales in Jan = 65,000.
Sales in Feb = 65,600 to 82,000.
Sales in March = In between 32,800 to 49,200.
Sales in April = In between 16,400 to 32,800.
Sales in May = In between 16,400 to 32,800. (some more than April month)
Sales in June = In between 16,400 to 32,800. (less than April and May month)
Sales in July = In between 0 to 16,400.
Sales in August = In between 16,400 to 32,800. (more than June and less than April month)
Sales in Sep = In between 16,400 to 32,800. (less than all months in this range)
Sales in Oct = In between 32,800 to 49,200.
Sales in Nov = In between 65,600 to 82,000.
Sales in Dec = 82,000.
Question 4.
Which two people own the most pairs of shoes?
Answer:
Two people who own the most pairs of shoes are Carl and Elaine.
Explanation:
Number of pair of shoes Carl own = 10.
Number of pair of shoes Elaine own = 10.
Number of pair of shoes Ben own = 8.
Number of pair of shoes Aisha own = 7.
Number of pair of shoes Danny own = 4.
Question 5.
Your friend constructed a bar graph to show which types of movies he watches most. Based on this information, what type of movie should you not bring to his house for viewing?
Answer:
Drama type of movie should not be brought to his house for viewing.
Explanation:
Number of movies watched in comedy = 4.
Number of movies watched in Action = 5.
Number of movies watched in Romantic = 6.
Number of movies watched in Drama = 1.
Number of movies watched in Science Fiction = 4.
Question 6.
Which mode of transportation had the most growth in passenger miles and which one had the least?
Most _______________
Least _______________
Answer:
Most growth in passenger miles – Rapid Rail.
Least growth in passenger miles – Motor Bus.
Explanation:
Number of miles of Motor Bus mode of transportation used by passengers = 260.
Number of miles of Regional Rail mode of transportation used by passengers = 2,320.
Number of miles of Rapid Rail mode of transportation used by passengers = 2,369.
Number of miles of Light Rail mode of transportation used by passengers = 785.
Question 7.
Write a sentence to summarize the trend illustrated in this graph showing park visitors.
Answer:
In the following graph, which year had the most growth in visitors and which had the least visitors.
More visitors are in 1997.
Least visitors are in 1995.
Explanation:
In the following graph, which year had the most growth in visitors and which had the least visitors.
Number of park visitors in 1995 = 20.
Number of park visitors in 1996 = 40.
Number of park visitors in 1997 = 60.
Number of park visitors in 1998 = 50.
Number of park visitors in 1999 = 35.
More visitors are in 1997.
Least visitors are in 1995.