Joint Bar Graphs

Q.

The mean of first five odd numbers is

1. 7

2. 6

3. 4

4. 5

Q. Arithmetic mean is denoted by ______.

1. $\overline{x}$
2. $\overline{y}$
3. $\overline{z}$
4. $\overline{p}$

Q.

___ is the most frequently observed value.

Q. The range of the data set 1, 2, 3, 4, 5 is ___.

1. 5
2. 4
3. 1
4. 3

Q.

The double bar graph represents the marks scored by the students in two consecutive academic years. In which subject has the performance improved the most?

1. Science
2. Hindi
3. English
4. Maths

Q. The mode of a set of observations is that observation which occurs often.

1. most
2. sometimes
3. never

Q. Choose the property that does not hold good for Joint Bar Graphs:

1. It is a set of bar graphs.
2. It shows different sets of information but joined to each other.
3. It makes comparison easy.
4. It occupies more space than making two different graphs.

Q. The mode of the data set 10, 20, 20, 10, 30, 30, 40, 40, 10 is ___

1. 10

Q. A double bar graph is shown below. Choose the correct options :-

1. Scale of white bar is greater to the scale of black bar
2. Scale of white bar is lesser to the scale of black bar
   
3. Scale of white bar is equal to the scale of black bar
4. Both bar should have different scale

Q. If the number of observations ‘n’ in a set of data is even, then the median value is given by ____.

1. $\frac{n}{2}$
2. $\frac{n+1}{2}$
3. $\frac{n+2}{2}$
4. average of $\frac{n}{2}$ and $\frac{n}{2}+1$

Q.

_________ can be used to compare two collections of data.

Q. The mode of the data set 1, 2, 2, 1, 3, 3, 4, 4, 1 is ___.

1. 4
2. 3
3. 2
4. 1

Q. Range = ____

1. Highest observation - Lowest observation
2. Lowest observation - Highest observation
3. Highest observation - Middle observation
4. Mighest observation - Lowest observation

Q. The double bar graph represents the marks scored by the students in two consecutive academic years. In which subject is the performance at par (same in both years)?

1. Maths
2. Science
3. English
4. Hindi

Q. Median of the dataset given below is 10.
$2,5,8,x,15,20$
Find the value of $x$ if the data is already sorted.

1. 8
2. 10
3. 12
4. 11

Q. A graph showing two sets of data simultaneously (using bars) is known as ______.

1. pictograph
2. histogram
3. pie chart
4. double bar graph

Q. Which of the following is the correct formula for arithmetic mean?

1. $\frac{Sumofallobservations}{Numberofobservations}$
2. $\frac{Numberofobservations}{Sumofallobservations}$
3. $\frac{Numberofobservations}{2}$
4. $\frac{Numberofobservations}{4}$

Q.

Find the arithmetic mean of 2, 4, 6, 8, 10.

1. 6

2. 5

3. 4

4. 3

Q.

Consider this data collected from a survey of a colony.

(i) Draw a double bar graph choosing an appropriate scale. What do you infer from the bar graph?

(ii) Which sport is most popular?

(iii) Which is more preferred, watching or participating in sports?

\begin{tabular}{|llllcl|} \hline Favourite Sport & Cricket & Basket Ball & swimming & Hockey & Athletics \\ \hline Watching & 1240 & 470 & 510 & 430 & 250 \\ \hline Participating & 620 & 320 & 320 & 250 & 105 \\ \hline \end{tabular}

Q. Number of children in six different classes are given below. Represent the data on a bar graph.
$\begin{array}{ccccccc}Class& Fifth& Sixth& Seventh& Eighth& Ninth& Tenth\\ No.ofchildren& 135& 120& 95& 100& 90& 80\end{array}$
How would you choose a scale?

1. 1 unit = 20 children
2. 1 unit = 15 children
3. 1 unit = 25 children
4. All of the above.

Q. Anything that we represent using number is called ____.

1. range
2. data
3. mean
4. median

Q.

See the double bar graph and answer the question that follows.

How many girls participated in crafts?

1. 5

2. 10

3. 15

4. 12

Q. Question 5(iii)
Consider this data collected from a survey of a colony.
$\begin{array}{cccccc}FavouriteSport& Cricket& BasketBall& Swimming& Hockey& Athletics\\ Watching& 1240& 470& 510& 423& 250\\ Participating& 620& 320& 320& 250& 105\end{array}$
Which is more preferred, watching or participating in sports?

Q. The difference in veg and non-veg students of grade 6 is ____ .

1. 50
2. 10
3. 40
4. 35

Q. The difference between the total number of students who like veg and non-veg is _______ .

1. 20
2. 25
3. 30
4. 15

Q. Study the Graph and state the scale on the Y axis:

1. 2 cm = 5 students
2. 2 cm = 10 students
3. 1 cm = 5 students
4. 1 cm = 2 students

Q. The mode of a set of observations is that observation which occurs often.

1. sometimes
2. never
3. most

Q.

Find the arithmetic mean of 2, 4, 6, 8, 10.

1. 3

2. 5

3. 4

4. 6

Q.

Pick out the subjects which do not show an improvement from 2005 to 2007.

1. Maths

2. Science

3. English

4. Hindi

Q. Question 5(iii)
Consider this data collected from a survey of a colony.
$\begin{array}{cccccc}FavouriteSport& Cricket& BasketBall& Swimming& Hockey& Athletics\\ Watching& 1240& 470& 510& 423& 250\\ Participating& 620& 320& 320& 250& 105\end{array}$
Which is more preferred, watching or participating in sports?