## Tables and Bar Graphs

#### What are bar graphs / bar charts?

Bar graphs or bar charts are visual display of data using bars of different size. It can be horizontal or vertical bars.

#### Why do we use tables and bar graphs?

Data are presented in a

The information in a table can be displayed using bars in a diagram called a

**table**to make it easier to compare and interpret them.The information in a table can be displayed using bars in a diagram called a

**bar graph**or**bar chart**. The length of bars changes with the value of data.#### 2. Meryl made a bouquet using the following flowers.

a. Show the data in the diagram below using a table.

b. Draw a bar graph to present the information in the table in part **a**.

a. Data in the figure above can be presented using a table like this:

b. The information in the table above can be presented in a bar graph as below.

#### 3. Using the information in question 2 above, answer the following:

**a. Which was the most common flower in the bouquet?**

*Answer:*Forget-me-not

**b. Which was the least common flower in the bouquet?**

*Answer:*Rose

**c. Which 2 kinds of flowers were used in equal numbers?**

*Answer:*Tulip and Lily

**d. How many flowers had the bouquet?**

*Answer:*1 + 5 + 5 + 4 + 9 = 24

#### 4. Meryl and Sheryl each made a bouquet using the following flowers.

a. Show the data in the diagram below using a table.

b. Draw a bar graph to present the information in the table in part **a**.

a. Data in the figure above can be presented using a table like this:

b. The information in the table above can be presented in a bar graph as below.

#### 5. Using the information in question 4 above, answer the following:

**a. Which was the most common kind of flower used by the two girls?**

*Answer:*Forget-me-not

**b. How many lilies did the 2 girls use together?**

*Answer:*5 + 4 = 9

**c. Who had more flowers in her bouquet? How many more flowers did she have?**

*Answer:*Sheryl had more flowers in her bouquet. She had 2 more flowers.

**d. What was the total number of flowers used by the 2 girls?**

*Answer:*4 + 5 + 9 + 8 + 24 = 50

#### 6. 80 children were asked to name their favourite sport. The following bar graph shows their choice.

a. Complete the following table using the data from the graph above.

**b. Which were the 2 most popular sports?**

*Answer:*Swimming and Cricket

**c. Which was the least popular sport?**

*Answer:*Skating

**d. How many more children chose swimming than martial arts as their favourite sport?**

*Answer:*26 − 10 = 16

**e. How many times as many children chose cricket than skating as their favourite sport?**

*Answer:*21 ÷ 7 = 3

3 times as many children chose cricket than skating as their favourite sport.

#### 7. The table below shows the number of 50¢ parking coupons and $1 parking coupons that 5 people used in a certain week.

a. Complete the table shown above.

**b. Who used the most number of parking coupons? How many?**

Tim used the most number of parking coupons.

52 + 52 = 104

He used 104 parking coupons.

**c. Who spent the most amount of money on parking?**

Mei and Tim

**d. Who spent the least amount of money on parking?**

Joel

**e. Which two people spent the same amount of money on parking in the week? What was the amount?**

Mei and Tim spent the same amount of money on parking in the week. The amount was $78.

**f. How many more parking coupons did Nick use than Amy? How much more amount did Nick spend than Amy?**

Nick => 10 + 72 = 82

Amy => 12 + 7 = 19

82 − 19 = 63

Nick used 63 more parking coupons than Amy.

$77 − $13 = $64

Nick spent $64 more than Amy.

**g. How many more $1 parking coupons than 50-cent parking coupons were used altogether?**

193 − 116 = 77

There were 77 more $1 parking coupons than 50-cent parking coupons used altogether.

**h. How much money was spent altogether on parking in the week?**

$251