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## AP Board 7th Class Maths Bits 6th Lesson Data Handling

Multiple Choice Questions :

Question 1.
Father of the Indian statistics is ______
(A) C.R. Rao
(B) Sir R.A. Fisher
(C) Ramanujan
(D) Aryabhatta
Answer:
(A) C.R. Rao

Question 2.
Measures of Central Tendency are ______
(A) Mean
(B) Mode
(C) Median
(D) All of the above
Answer:
(D) All of the above

Question 3.
A number or value that represents or shows the central tendency of a group of observations of data is ______
(A) Median
(B) Mode
(C) Arithmetic Mean
(D) None
Answer:
(C) Arithmetic Mean

Question 4.
The difference between maximum and minimum values of data is its ______
(A) Mean
(B) Mode
(C) Median
(D) Range
Answer:
(B) Mode

Question 5.
The observation which occurs most 13. What is the mean of first 10 natural frequently in the given data is called ______ of the data.
(A) Mean
(B) Mode
(C) Median
(D) None
Answer:
(B) Mode

Question 6.
Data having two modes is known as ______
(A) Unimodal data
(B) Bimodal data
(C) Trimodal data
(D) No mode
Answer:
(B) Bimodal data

Question 7.
The middle most value of the data, when the observations are arranged in either ascending or descending order is called ______
(A) Mean
(B) Mode
(C) Median
(D) None
Answer:
(C) Median

Question 8.
Representation of numerical data by using bars of uniform width is called ______
(A) Bar graph
(B) Pictograph
(C) Pie diagram
(D) None
Answer:
(A) Bar graph

Question 9.
The parts of the circle used to ______
(A) Triangles
(B) Rectangles
(C) Sectors
(D) Bars
Answer:
(C) Sectors

Question 10.
The visual representation of the numerical data by sectors of a circle is ______
(A) Pie chart
(B) Bar graph
(C) Pictograph
(D) None
Answer:
(A) Pie chart

Question 11.
The mean of first five even numbers is
(A) 6
(B) 8
(C) 5
(D) 10
Answer:
(A) 6

Question 12.
The appropriate representative value for the following situation is to know the performance of students in a Maths test is ______
(A) Mode
(B) Median
(C) Mean
(D) All
Answer:
(C) Mean

Question 13.
What is the mean of first 10 natural numbers?
(A) 5.4
(B) 5.6
(C) 5.3
(D) 5.5
Answer:
(D) 5.5

Question 14.
The mean of 2, 3, 4, 7, 11, x, 9 is 6, then the value of x is ______
(A) 4
(B) 5
(C) 6
(D) 7
Answer:
(C) 6

Question 15.
The median of 1, 2, 0, 3, 7, 5, 2.5 is ______
(A) 2
(B) 2.5
(C) 1
(D) 1.5
Answer:
(B) 2.5

Question 16.
What is the mode of the observations 2, 3, 5, 2, 7, 3, 2, 8, 6?
(A) 5
(B) 3
(C) 2, 5
(D) 2
Answer:
(D) 2

Question 17.
Measure of central tendency involved in preparation of number of sweets for a function is ______
(A) Mean
(B) Median
(C) Mode
(D) None
Answer:
(A) Mean

Question 18.
From different sizeg of Chappals opting a suitable size is ______
(A) Mean
(B) Median
(C) Mode
(D) None
Answer:
(C) Mode

Question 19.
If 1 is added to 3, 4, 5, 5, 8 then the value of its mean is ______
(A) remains same
(B) increases the mode
(C) increases by 1
(D) none
Answer:
(C) increases by 1

Question 20.
What is the difference between the median and mode of the following data? 32, 38, 33, 35, 34, 35, 42
(A) 0
(B) 2
(C) 3
(D) 7
Answer:
(A) 0

Question 21.
Which of the following is called Bimodal data?
(A) 3, 5, 9, 6, 5, 9, 2, 9, 3, 5
(B) -0, 1, 2, 3, 3, 4, 5, 6, 7, 8
(C) 1, 2, 3, 4, 5, 6, 7, 8, 9, 10
(D) 5, 6, 3, 5, 4, 9, 5, 6, 4, 5
Answer:
(A) 3, 5, 9, 6, 5, 9, 2, 9, 3, 5

Question 22.
In a class of 10th students dullers-6, average-6, above average-8, brilliant- 4. From the above figure the angle for brilliant students is ______

(A) 45°
(B) 60°
(C) 90°
(D) 30°
Answer:
(B) 60°

Question 23.
From the above figure, dullers represents the angle of ______
(A) 120°
(B) 80°
(C) 150°
(D) 90°
Answer:
(D) 90°

Question 24.
From the above figure, Above average represents the angle of ______
(A) 120°
(B) 110°
(C) 450°
(D) 90°
Answer:
(A) 120°

Question 25.
$$\frac{\text { Sum of observations }}{\text { Number of observations }}$$ = ______
(A) Mode
(B) Median
(C) Mean
(D) Range
Answer:
(C) Mean

Reasoning Questions:

Question 1.
C, G, K, O, S, V, ______
(A) Z
(B) W
(C) X
(D) A.
Answer:
(D) A.

Question 2.
ZB, YD, XF WH ______
(A) VJ
(B) VI
(C) UJ
(D) UI
Answer:
(A) VJ

Question 3.
DCBA, STUV, HGFE, WXYZ ______
(A) KIMN
(B) LKJI
(C) JKLM
(D) LMNU
Answer:
(B) LKJI

Question 4.
Z, YX, WVU, TSRQ, ______
(A) IMNOP
(B) ONMLK
(C) PONML
(D) MNOPQ
Answer:
(C) PONML

Question 5.
SV ZAY, XBW, VCU, TDS, ______
(A) PER
(B) QER
(C) REP
(D) REQ
Answer:
(D) REQ

Question 6.
ABP, CDQ, EFR, GHS, ______
(A) IJT
(B) JKT
(C) UU
(D) JKU
Answer:
(A) IJT

Question 7.
PO, QP, RQ, SR, ______
(A) ST
(B) TS
(C) UT
(D) TU
Answer:
(B) TS

Question 8.
ZM>YN, XO, WP ______
(A) VO
(B) VQ
(C) VR
(D) RV
Answer:
(B) VQ

Question 9.
EV, GT, IR, KP, ______
(A) MN
(B) LM
(C) NM
(D) ML
Answer:
(A) MN

Question 10.
MNM, NLK, OJI, PHG ______
(A) EOF
(B) FQE
(C) QFE
(D) GQH
Answer:
(C) QFE

Fill in the blanks :

Question 1.
Father of the Statistics was ______
Answer:
Sir R.A. Fisher

Question 2.
Types of measure of central tendency are ______
Answer:
3

Question 3.
Arithmetic Mean (Average) = ______
Answer:
$$\frac{\text { Sum of observations }}{\text { Number of observations }}$$

Question 4.
Arithmetic mean of given data always lies between the ______ and ______ observations of the data.
Answer:
Highest and lowest

Question 5.
Data having only one mode is known as ______
Answer:
Unimodal data

Question 6.
If the number of observations is odd the median is ______
Answer:
$$\left(\frac{\mathrm{n}+1}{2}\right)^{\mathrm{th}}$$ Observation

Question 7.
If number of observations is even, then the median ______
Answer:
Average of $$\left(\frac{\mathrm{n}}{2}\right)^{\text {th }}$$ and $$\left(\frac{n}{2}+1\right)^{\text {th }}$$ obervations

Question 8.
Data represented in the form of picture, graphs or chats is ______
Answer:
Viaual representation

Question 9.
In bar graphs the width of all rectangles (bars) is ______
Answer:
equal

Question 10.
In bargraphs the height (length) of each bar is ______ to the data that it represents.
Answer:
Proportional

Question 11.
Angle of the sector = ______
Answer:
$$\frac{\text { Value of the item }}{\text { Sum of the value of all items }}$$ × 360°

Question 12.
The mean of first six odd numbers is ______
Answer:
6

Question 13.
The mode of 1, 2, 2, 3, 3, 4, 4, 4 is ______
Answer:
4

Question 14.
The median of 2, 3, 5, 2, 3, 6, 2, 4, 8 is ______
Answer:
3

Question 15.
What is the average temperature of Rentachintala in the month of May for 5 days 47°C, 46.5°C, 44.5°C, 48°C, 44°C? ______
Answer:
46°C

Question 16.
The mean of first 7 primes is ______
Answer:
28

Question 17.
What is the mean of 2 – a, 2, 2 + a ? ______
Answer:
2

Question 18.
What is the median of 7, 2, 11, 3, 5, 13, 17 ? ______
Answer:
7

Question 19.
The mode of first 10 natural numbers is ______
Answer:
No mode

Question 20.
If a fixed number is added to the given observation, then the change of the median is ______
Answer:
Increase the median in addition to the fixed number

Question 21.
Wages of workers in a factory taken into consideration is ______
Answer:
Median

Question 22.
In a class test Sreeja and Sreekari got 18 each. Aditya and Swathi got 16 each and Sonali got 17, then their average mark is ______
Answer:
17

Question 23.
A data of 10 observations has a minimum value 15 and maximum value 25, then the mean of the data is always ______
Answer:
Always between 15 and 25

Question 24.
The mode of the data 2, 3, 5, 9, 6, 5, 9, 3, 5, 9 is ______
Answer:
Both 5 and 9

Question 25.
The median of 49, 48, 15, 20, 28, 17, 14 and 110 is ______
Answer:
24

Match the following :

Question 1.

 1. Mean of 1, 2, 3, 4, 5, 6 is (A) No mode 2. Mode of 1, 2, 3, 4, 5, 6 is (B) 5 3. Median of 1, 2, 3, 4, 5, 6, 7 is (C) 3.5 4. Range of 1, 2, 3, 4, 5, 6 is (D) 3 5. Types of measure of central tendency are (E) 4

Answer:

 1. Mean of 1, 2, 3, 4, 5, 6 is (C) 3.5 2. Mode of 1, 2, 3, 4, 5, 6 is (A) No mode 3. Median of 1, 2, 3, 4, 5, 6, 7 is (E) 4 4. Range of 1, 2, 3, 4, 5, 6 is (B) 5 5. Types of measure of central tendency are (D) 3

Question 2.

 1. $$\frac{\text { Sum of observations }}{\text { Number of observations }}$$ = ______ (A) Mode 2. The middle most yalue of the data when the data is arranged in the ascending order (B) Rang 3. The most frequently observation occured in the data is ______ (C) Median 4. Difference of maximum value and minimum value is ______ (D) Mean

Answer:

 1. $$\frac{\text { Sum of observations }}{\text { Number of observations }}$$ = ______ (D) Mean 2. The middle most yalue of the data when the data is arranged in the ascending order (C) Median 3. The most frequently observation occured in the data is ______ (A) Mode 4. Difference of maximum value and minimum value is ______ (B) Rang