Collection and Organisation of Data

Q.

Advantage and disadvantage of statistics

Q.

If $132300=2^2\times 3^3\times 5^2\times a^b,$ then which of the following is true ?

1. $a=2b$

2. $a+b=8$

3. LCM of $a$ and $b$ is 14.

4. $a=b$

Q.

Collection of data is called __________

Q.

$9,3,18,6,36,12.....$Missing letter in this series.

Q.

An alloy contains copper and zinc in the ratio 7:3 . If it contains 12.6 g of copper , how much does this alloy weigh ?

Q.

What is the probability of getting a head on tossing an unbiased coin?

1. $\frac{1}{2}$

2. $\frac{1}{4}$

3. 1

4. $\frac{1}{3}$

Q.

What do you mean by nesting of list?

Q.

Facts or figures collected for a definite purpose are called _______.

1. Data
2. Statistics
3. Noteified Information
4. None of these

Q. Draw the double bar graph for the following data.

Sports played by number of students of ABC school in 2018 and 2019.

Sports	No. of students (2018)	No. of students (2019)
Cricket	10	5
Tennis	5	10
Chess	15	20
Football	10	15

1. 
2. 
3. 
4. 

Q.

Which Of The Following Is Not In Place Sorting Algorithm By Default?

1. Heap Sort

2. Quick Sort.

3. Merge Sort

4. Insertion Sort

Q. Which of the following is not a triangular number?

1. 0
2. 1
3. 2
4. 3

Q.

A collection of facts, such as values or measurements is known as

1. None of the above

2. Data

3. Information

4. Table

Q.

Look at the patterns made by the matchsticks . Complete the tables and find a general formula.

Number of triangles (x)	1	2	3	4	5	6	7	8
Number of matchsticks (y)	3	6

Q.

Data can be _____.

1. All of these

2. Facts

3. Figures

4. Numericals

Q. Find the sum of the elements of 5th row of a pascal's triangle.

1. 15
2. 16
3. 20
4. 21

Q. Which of the following is a triangular number?

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

Q.

You ask $50$ randomly chosen artists in your town about their favorite art form. Determine whether your conclusion is valid. Justify your answer.

Q. Find the sum of elements of the 3rd row of a pascal's triangle.

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

Q. What do you notice about the horizontal sums in Pascal’s triangle?

Q. Sort the following stages of statistical study in ascending order.

1. Analysis
2. Collection
3. Presentation
4. Organisation
5. Interpretation

Q. Generalising the given pattern using match sticks as an algebraic expression, nth term denoting the number of match sticks will be .

1. 3n+3
2. 3n-3
3. 4n+4
4. 4n-4

Q.

Given bar graph shows the runs scored by 6 teammates. scored the lowest and scored the highest runs.

1. Shubh
2. Surya
3. Shruthi
4. Vipul

Q. According to the given table, find the relation between x and y.
$\begin{array}{ccccc}x& 1& 2& 3& 4\\ y& 2& 4& 6& 8\end{array}$

1. $y=2x$
2. $y=2x-1$
3. $y=x^2$
4. $y=x^2+x$

Q.

To analyze the performance of Indian cricket team, the appropriate data collection is

1. Finding runs scored by top five batsmen and bowling performance of main 5 bowlers of the team in all International matches

2. Finding runs scored by each player in all International matches in a year

3. Finding bowling performance of all bowlers in all International matches in a year

4. Finding runs scored and bowling performance of each player in all International matches

Q. The sum of elements in the seventh row of Pascal’s Triangle is……?

1. 64
2. 128
3. 14
4. 32

Q. In the table below, the number of thieves caught by two police officers, Raju and Saju during a week is given. Whose daily average of catching the thieves is more and how much more?
$\begin{array}{cccccccc}& \text{MONDAY}& \text{TUESDAY}& \text{WEDNESDAY}& \text{THURSDAY}& \text{FRIDAY}& \text{SATURDAY}& \text{SUNDAY}\\ \text{Raju}& 2& 5& 4& 1& 3& 2& 4\\ \text{Saju}& 3& 4& 2& 2& 1& 2& 0\end{array}$

1. Raju, 1
2. Saju, 3
3. Saju, 1
4. Raju, 3

Q. Which of the following is not a triangular number?

1. 5
2. 10
3. 15
4. 21

Q. The odd positive integers are arranged in a triangle as follows:
1
3 5
7 9 11
13 15 17 19
21 23 25 27 29
... ... ... ... ... ...
... ... ... ... ... ...
Find the sum of the numbers in the 10th row of this arrangement:

1. 1000

Q.

Get the algebraic expression in the following case using variables, constants, and arithmetic operations:

Product of numbers y and z subtracted from 10.

Q. Match the following values of y when x = 2 and x = 3 respectively and the relation between x and y.

1. $y=x^2$
2. $y=2x$
3. $y=3x$
4. $y=3x-2$