Organising Data

Q.

The Shortcut Key In Tally, F2 Is Used To

1. To Change The Data.

2. To Change The Records.

3. To Change The Period.

4. To Delete The Records.

Q. The probability of an event can never be

1. < 0
2. > 1
3. > 0
4. < 1

Q. In a survey conducted with 120 school students, the following information was collected about which activity they prefer to do in their spare time. Draw a bar graph to illustrate the data taking scale of 2 units length = 5 students.

Q. From the bar graph, find which month has the maximum number of birthdays.

1. July
2. June
3. November
4. August

Q. The following table shows the marks obtained by students of a class in a math test (out of 10 marks).
Maximum number of students got marks.

1. 8
2. 9
3. 7

Q. The army has a minimum height requirement of 1.65 m. If the height of 8 applicants is tabulated as follows, choose the relevant line plot representing the data.

Height measured in metres
1.6	1.7	1.5	1.6	1.7	1.5	1.8	1.8

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

Q.

Twenty people in a group were asked their favorite color. These were their choices.

Red, green, yellow, blue, blue, red, green, yellow, yellow, red, red, green, green, red, red, blue, blue, blue, red.

Draw a pictograph to represent the data. Also, answer the following question:

Which is the least favorite color?

Q. The chance or probability of a sure event is always .

1. 2
2. 1
3. 0

Q.

John took thirty different quizzes with ten questions each.
The number of questions answered correctly each time was as follows:

4, 2, 6, 8, 3, 5, 5, 3, 6, 6, 7, 4, 3, 10, 5, 4, 9, 7, 6, 3, 8, 8, 4, 4, 5, 3, 6, 4, 7, 9

Construct the frequency distribution table using tally marks to find out how many quizzes he scored 8 or more?

1. 3

2. 5

3. 8

4. 6

Q. Fill in the blanks-
Representation of data by using pictures is known as __________.

Q. In a survey that happened in your school regarding 'What sport do you like to play?';
data was organized in two ways as shown, but the Gymnastics tutor was unable to identify exact preference of students. The two data confused him and he started checking Data 2 as it was looking much creative and fascinating. According to him DATA 2 gave the exact information quickly as compared to DATA 1.

State whether the statement given by the tutor is true or false.

1. True
2. False

Q. The table shows the average cost of sweaters and number of pairs of sweaters sold at different shops. Which of the following scatter plot shows the given table of data?

1. 
2. 
3. 
4. 

Q.

The colours of refrigerators preferred by people living in a locality are shown by the following pictograph.

Which colour is preferred by most of the people $?$

Q.

A pictograph is a representation of data using ___.

1. lines

2. pictures

3. bars

4. tally marks

Q. Find the mean of the data set given by the stem-and-leaf plot.

1. 77
2. 74
3. 75
4. 68

Q. The organised form of the data set 8, 6, 12, 3, 5, 9 is

1. 12, 9, 6, 5, 8, 3
2. 3, 5, 8, 6, 9, 12
3. 3, 5, 8, 9, 6, 12
4. 3, 5, 6, 8, 9, 12

Q.

From pictographs to bar graphs, children learn a lot about collecting, organizing and presenting data.

1. False

2. True

Q. The test scores of students are plotted in the given stem-and-leaf plot. How many students have scored test scores greater than 85?


Test scores of students \begin{tabular}{r|lll} \hline Stem & \multicolumn{3}{|c}{ Leaf } \\ \hline 6 & 5 & 6 & 7 \\ 7 & 2 & 8 & 9 \\ 8 & 5 & \\ 9 & 1 & 2 & 7 \\ & & & Key:6|5 \( =65 \) \end{tabular}

Q. The activity of collecting data is called ______ .

1. table
2. bar graph
3. data collection
4. observation

Q. How can we organise the following items?

Red ball , Blue ball , Yellow ball , Black ball , Black ball , Red ball , Black ball , Blue ball , Blue ball , Yellow ball , Red ball , Red ball , Blue ball , Black ball.

1. Pronouning names
2. Organise by shape
3. Writing names
4. Organise by colour

Q. The class that has arranged their marks in ascending order is

1. VI 'B'
2. VI 'A'
3. VI 'D'

Q.

The number of girl students in each class of a co-educational middle school is depicted by the pictograph.
Observe this pictograph and answer the following question:
How many girls are there in class VII?

Q. Angel counted the number of beads in her bracelets and the data is shown in the stem-and-leaf plot. Which of the following gives the center of data?

1. 56
2. 47
3. 48
4. 61

Q. Arrange the heights (inches) of the students in ascending order.

1. 55
2. 49
3. 57
4. 60
5. 59

Q.

Srivani has invited some friends over, for a pizza. She asked her friends what toppings they would like on their pizza.

What can Srivani most likely conclude from the table?

1. Cheese is preferred over pepperoni pizza.

2. Sausage is the group's second-favourite type of pizza.

3. Mushroom pizza should not be ordered.

4. Srivani only eats onion pizza

Q.

Given below are the marks (out of 100) in mathematics obtained by 40 students of Class VI in an annual examination.

Which section has arranged their marks in ascending order?

1. VI 'A'

2. VI 'B'

3. VI 'C'

4. VI 'D'

Q. Arrange the following integers in ascending order.
$-8,-4,0,-11,9.6,13,-27,19$

Q.

We have marks of different students in three different tables below. Which one of the following is the easiest to analyse?

A)$\begin{array}{cc}\text{Student}& \text{Marks scored (Out of 100)}\\ \text{A}& 77\\ \text{B}& 65\\ \text{C}& 93\\ \text{D}& 42\\ \text{E}& 88\end{array}$

B)$\begin{array}{cc}\text{Student}& \text{Marks scored (Out of 100)}\\ \text{E}& 88\\ \text{D}& 42\\ \text{C}& 93\\ \text{B}& 65\\ \text{A}& 77\end{array}$

C)$\begin{array}{cc}\text{Student}& \text{Marks scored (Out of 100)}\\ \text{D}& 42\\ \text{B}& 65\\ \text{A}& 77\\ \text{E}& 88\\ \text{C}& 93\end{array}$

1. A
2. B
3. C
4. Both A & B

Q.

Tally marks $\mathrm{IIII}$, represent $4$.

1. True
2. False

Q. Arrange the following integers in descending order:
$-31,139,-203,-97,0,4208$