Bar Graphs

Q. When data is represented using rectangular bars, it is called a graph.

Q.

The double box-and-whisker plot represents the goals scored per game by two hockey teams during a $20$-game season. Is the number of goals scored per game significantly greater for one team than the other? Explain.

Q. Spaces between the rectangles in a bar graph are always __________.

1. distinct
2. unequal
3. equal
4. zero

Q. A bar graph showing two sets of data simultaneously is known as

1. Pictograph
2. Histogram
3. Double bar graph
4. Pie chart

Q. The following bar graph represents the type of pets adopted by different persons in a town.

Which pet represents the mode of the given data set?

1. 40
2. Dog
3. Cat
4. Both (b) and (c) above.

Q. The bar graph corresponding to the following frequency distribution table is

1. 
2. 
3. 
4. 

Q.

A bar $5cm$tall represents the frequency of $500$. What is the scale used?

Q. The following bar graph shows the quantity of apple yeild in each tree:

The average number of apples yeild per tree is .

Q.

Read the adjacent bar graph and answer the questions that follow:

What information is given by the bar graph?

Q.

The bar graph shows the favourite colours of 20 students in a class. How many students like blue more than pink?

Q. Yashwant gives different amounts of time as shown below, to different exercises he does during the week. Draw a bar graph to show the details of his schedule using an appropriate scale.

Type of exercise	Running	Yogasanas	Cycling	Mountaineering	Badminton
Time	35 Minutes	50 minutes	1 hr 10 min	$1\frac{1}{2}$ hours	45 minutes

Q. Consider the following bar graph which shows monthly imports of a commodity over six months:


Which month had a maximum number of imports and which month(s) had an import of 30 thousand?

1. March is the month of the maximum number of imports.
   January had an import of 30 number of commodities.
2. March is the month of the maximum number of imports.
   January had an import of 30 thousands of commodities.
3. March is the month of the maximum number of imports.
   January and April had an import of 30 commodities each.

4. March is the month of the maximum number of imports.
   January and April had an import of 30 thousand commodities each.

Q. In a community, the types of pet adopted by different people is plotted in the following graph.


Find the mode of the data set.

1. Cat or dog.
2. Cat and dog.
3. Rabbit, fish or hamster.
4. Rabbit, fish, and hamster.

Q. The quantity of production of a commodity by different companies is plotted in the following graph:


Calculate the mean quantity of production of the item in hundreds by all the mentioned companies.

Q. The following bar graph shows the favourite colours of 20 students of a class.

From the graph, find which is the most favourite colour of students.

Q.

The yearly production of cars by a particular company is given below.

Year	Number of cars produced
$2001$	$16000$
$2002$	$20000$
$2003$	$28000$
$2004$	$24000$

Draw a bar graph to display this information.

Q.

The following table shows the ages of five people, illustrates this data using a Bar graph, and tell by how many years is A older than D?

Name of Persons	$\mathrm{A}$	$\mathrm{B}$	$\mathrm{C}$	$\mathrm{D}$	$\mathrm{E}$
Ages in Years	$35$	$25$	$40$	$30$	$50$

Q. Analyze the bar graph and find out the number of students who like the orange color.

Q. A histogram is drawn for the following data.


Which of the following shows the error in the histogram?

1. The frequencies are wrongly marked.
2. The bars are marked with gap.
3. No error
4. The axes are not labeled.

Q. The plot the types of movies liked by different numbers of people corresponding to the provided data.

1. 
2. 
3. 
4. 

Q.

The distribution below shows the number of wickets taken by bowlers in one- day cricket matches. Find the mean number of wickets by choosing a suitable method.

$\begin{array}{ccccccc}\text{No. of wickets}& 20-50& 50-100& 100-150& 150-250& 250-350& 350-450\\ \text{No. of bowlers}& 7& 5& 16& 12& 2& 4\end{array}$

Q.

The bar graph shows the favourite subjects of 20 students in class VI 'B'. How many more of them prefer Mathematics to Science?

FAVOURITE SUBJECTS OF 20 STUDENTS

Here the horizontal axis is x axis which represents subjects and vertical axis is y axis which represents number of students. x axis represents subjects and the scale y axis 1 cm = 1 student.

1. 2

2. 5

3. 4

4. 3

Q.

If we need to graphically represent data in which the values of the variable are not quantifiable (and hence not comparable), which of these will we use?

1. Histogram

2. Frequency polygon

3. Bar graph

4. Can't say

Q. What is the mean of first five natural numbers.

Q. The following bar graph shows the favourite colours of 20 students of a class.

What can be inferred from the graph?

1. Red is the favourite colour of the least students.
2. Blue is the favourite colour of most students.
3. Pink and green are equally liked.
4. Orange is the third most popular colour.

Q. <!--td {border: 1px solid #ccc;}br {mso-data-placement:same-cell;}--> Which plot correctly represents the following data set of different fruit trees in an orchard?
Name of Fruit Tree Number of Fruit Trees

Banana	Apple	Strawberry	Orange
60	65	50	40

1. 
2. 
3. 
4. 

Q. The bar graph shows the number of votes received by each mathematician.


Find the number of people who voted for Jack.

1. 3.5
2. 17500
3. 7.5
4. 18500

Q. The given bar graph shows the information of 120 school students about which activity they prefer to do in their spare time. Which activity is preferred by most of the students other than playing?

1. Watching TV
2. Painting
3. Reading story books
4. Listening to music

Q. Is it required to have minimum two columns or two rows of data to plot a bar graph?

1. Yes
2. No

Q.

The graph below shows average height of girls at different ages. What will be the age of the girl whose height is 65 inches?

1. 10

2. 20

3. 15

4. None of these