Tabulation Questions and Answers - Set 3

This set of Data Interpretation Questions and Answers (MCQs) focuses on “Tabulation – Set 3”.

1. Study the table and find the average height of all the boys.

Heights	1	2	3	4	5	6	7	8
Boys	153	158	147	145	156	146	157	146
Girls	134	146	149	137	142	143	141	130

a) 150.5
b) 151
c) 151.5
d) 152
View Answer

Answer: b
Explanation: The average height of all the boys = (153 + 158 + 147 + 145 + 156 + 146 + 157 + 146) / 8 = 151

2. Study the table and find the average height of first 4 boys.

Heights	1	2	3	4	5	6	7	8
Boys	153	158	147	145	156	146	157	146
Girls	134	146	149	137	142	143	141	130

a) 150
b) 150.75
c) 151
d) 151.75
View Answer

Answer: b
Explanation: The average height of the first 4 boys = (153 + 158 + 147 + 145) / 4 = 150.75

3. Study the table and find the average height of the last 4 boys.

Heights	1	2	3	4	5	6	7	8
Boys	153	158	147	145	156	146	157	146
Girls	134	146	149	137	142	143	141	130

a) 151
b) 151.25
c) 152
d) 152.25
View Answer

Answer: b
Explanation: The average height of the last 4 boys = (156 + 146 + 157 + 146) / 4 = 151.25

4. Study the table and find the average height of all the girls.

Heights	1	2	3	4	5	6	7	8
Boys	153	158	147	145	156	146	157	146
Girls	134	146	149	137	142	143	141	130

a) 140
b) 140.25
c) 140.50
d) 140.75
View Answer

Answer: b
Explanation: The average height of all the girls = (134 + 146 + 149 + 137 + 142 + 143 + 141 + 130) / 8 = 140.25

5. Study the table and find the average height of first 5 girls.

Heights	1	2	3	4	5	6	7	8
Boys	153	158	147	145	156	146	157	146
Girls	134	146	149	137	142	143	141	130

a) 141.2
b) 141.4
c) 141.6
d) 141.8
View Answer

Answer: c
Explanation: The average height of the first 5 girls = (134 + 146 + 149 + 137 + 142) / 5 = 141.6

6. Study the table and find the average height of the last 7 girls.

Heights	1	2	3	4	5	6	7	8
Boys	153	158	147	145	156	146	157	146
Girls	134	146	149	137	142	143	141	130

a) 144.41
b) 144.14
c) 141.41
d) 141.14
View Answer

Answer: d
Explanation: The average height of the last 7 girls = (146 + 149 + 137 + 142 + 143 + 141 + 130) / 7 = 141.14

7. Study the table and find the average height of all the boys and girls.

Heights	1	2	3	4	5	6	7	8
Boys	153	158	147	145	156	146	157	146
Girls	134	146	149	137	142	143	141	130

a) 145.635
b) 145.625
c) 145.250
d) 145.5
View Answer

Answer: b
Explanation: The average height of the boys and girls combined = (140.25 + 151) / 2 = 145.625

8. Study the table and find the average height of boy 6 and girl 4.

Heights	1	2	3	4	5	6	7	8
Boys	153	158	147	145	156	146	157	146
Girls	134	146	149	137	142	143	141	130

a) 151.5
b) 141.5
c) 131.5
d) 145.5
View Answer

Answer: b
Explanation: the average height of boy 6 and girl 4 = (146 + 137) / 2 = 141.5

9. Study the table and find the average height of boy 5, 6, 7 and girl 3, 7, 8.

Heights	1	2	3	4	5	6	7	8
Boys	153	158	147	145	156	146	157	146
Girls	134	146	149	137	142	143	141	130

a) 141.5
b) 146.5
c) 151.5
d) 152.5
View Answer

Answer: b
Explanation: The average height of boy 5, 6, 7 and girl 3, 7, 8 = (156 + 146 + 157 + 149 + 141 + 130) / 6 = 146.5

10. Study the table and find the average height of all the boys and first 5 girls.

Heights	1	2	3	4	5	6	7	8
Boys	153	158	147	145	156	146	157	146
Girls	134	146	149	137	142	143	141	130

a) 141.1
b) 143.6
c) 146.3
d) 149.2
View Answer

Answer: c
Explanation: The average height of all the boys and first 5 girls = (151 + 141.6) / 2 = 146.3

11. Study the table and find the average height of all the results.

	A	B	C	D	E	F	G	H	I
Age	20	25	34	43	23	25	27	36	33
Weight	66	67	76	78	68	86	57	75	67
Height	143	141	145	142	147	149	152	139	140

a) 144.22 units
b) 150.5 units
c) 162.22 units
d) 167.5 units
View Answer

Answer: a
Explanation: The average height of all the results = (143 + 141 + 145 + 142 + 147 + 149 + 152 + 139 + 140) / 9 = 144.22 units

12. A’s weight is what percentage of the total weight of the results?

	A	B	C	D	E	F	G	H	I
Age	20	25	34	43	23	25	27	36	33
Weight	66	67	76	78	68	86	57	75	67
Height	143	141	145	142	147	149	152	139	140

a) 10%
b) 10.3%
c) 11%
d) 11.3%
View Answer

Answer: b
Explanation: The total weight = 66 + 67 + 76 + 78 + 68 + 86 + 57 + 75 + 67 = 640 units
A’s weight = 66 units
The required percentage = 66 / 640 * 100 = 10.31% ≈ 10.3 %

13. Study the table and find the average age of all the results.

	A	B	C	D	E	F	G	H	I
Age	20	25	34	43	23	25	27	36	33
Weight	66	67	76	78	68	86	57	75	67
Height	143	141	145	142	147	149	152	139	140

a) 32 units
b) 32.33 units
c) 33 units
d) 33.33 units
View Answer

Answer: b
Explanation: The average age of all the results = (20 + 25 + 43 + 34 + 23 + 25 + 27 + 36 + 33) / 8 = 266 / 8 = 32.33 units

14. Study the table and find the percentage of b’s weight in the total weight.

	A	B	C	D	E	F	G	H	I
Age	20	25	34	43	23	25	27	36	33
Weight	66	67	76	78	68	86	57	75	67
Height	143	141	145	142	147	149	152	139	140

a) 10%
b) 10.5%
c) 11%
d) 11.5%
View Answer

Answer: b
Explanation: The total weight = 66 + 67 + 76 + 78 + 68 + 86 + 57 + 75 + 67 = 640 units
B’s weight = 67 units
The required percentage = 67 / 640 * 100 = 10.46% ≈ 10.5%

15. Study the table and find what is the percentage share of a’s age in the total age of the results?

	A	B	C	D	E	F	G	H	I
Age	20	25	34	43	23	25	27	36	33
Weight	66	67	76	78	68	86	57	75	67
Height	143	141	145	142	147	149	152	139	140

a) 5.5%
b) 6.5%
c) 7.5%
d) 8.5%
View Answer

Answer: c
Explanation: The total age of the results = 20 + 25 + 43 + 34 + 23 + 25 + 27 + 36 + 33 = 268 units
A’s age = 20 units
The required result = 20 / 268 * 100 = 7.46% ≈ 7.5%

16. Study the table and find the average age of the first 5 results.

	A	B	C	D	E	F	G	H	I
Age	20	25	34	43	23	25	27	36	33
Weight	66	67	76	78	68	86	57	75	67
Height	143	141	145	142	147	149	152	139	140

a) 27 units
b) 28 units
c) 29 units
d) 30 units
View Answer

Answer: c
Explanation: The required average = (20 + 25 + 43 + 34 + 23) / 5 = 145 / 5 = 29 units

17. If the age of a, b and c is doubled, Study the table, and find the new average age.

	A	B	C	D	E	F	G	H	I
Age	20	25	34	43	23	25	27	36	33
Weight	66	67	76	78	68	86	57	75	67
Height	143	141	145	142	147	149	152	139	140

a) 36.55 units
b) 37.55 units
c) 38.55 units
d) 39.55 units
View Answer

Answer: c
Explanation: The previous total = 20 + 25 + 43 + 34 + 23 + 25 + 27 + 36 + 33 = 268 units
The new total = 268 + 20 + 25 + 34 = 347
The new average = 347 / 9 = 38.55 units

18. Study the table and find the percentage contribution of c’s age in the total weight.

	A	B	C	D	E	F	G	H	I
Age	20	25	34	43	23	25	27	36	33
Weight	66	67	76	78	68	86	57	75	67
Height	143	141	145	142	147	149	152	139	140

a) 12.66%
b) 12.68%
c) 12.7%
d) 12.75%
View Answer

Answer: b
Explanation: The total age = 20 + 25 + 43 + 34 + 23 + 25 + 27 + 36 + 33 = 268 units
C’s age = 34 units
The required percentage = 34 / 268 * 100 = 12.68%

19. Study the table and find the percentage contribution of I’s age in the total weight.

	A	B	C	D	E	F	G	H	I
Age	20	25	34	43	23	25	27	36	33
Weight	66	67	76	78	68	86	57	75	67
Height	143	141	145	142	147	149	152	139	140

a) 12.3%
b) 11.4%
c) 10.5%
d) 9.8%
View Answer

Answer: a
Explanation: The total age = 20 + 25 + 43 + 34 + 23 + 25 + 27 + 36 + 33 = 268 units
I’s age = 33 units
The required percentage = 33 / 268 * 100 = 12.31% ≈ 12.3%

20. Study the table and find what is the percentage contribution of g’s weight in the total weight of the results.

	A	B	C	D	E	F	G	H	I
Age	20	25	34	43	23	25	27	36	33
Weight	66	67	76	78	68	86	57	75	67
Height	143	141	145	142	147	149	152	139	140

a) 8.8%
b) 8.9%
c) 9.8%
d) 9.9%
View Answer

Answer: b
Explanation: The total weight of the results = 66 + 67 + 76 + 78 + 68 + 86 + 57 + 75 + 67 = 640 units
G’s weight = 57 units
The required percentage = 57 / 640 * 100 = 8.9%

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