Statistical Analysis, GMAT® Math | Official Guide 2018 | Questions 1-404, Problem Solving (Section 5.3) and Data Sufficiency (Section 6.3)

	A	B	C	D	E	F	G	H	I	J	K	L	M	N	O	P	Q	R	S	T	U	V	W	X	Y	Z	AA	AB	AC	AD	AE	AF	AG	AH	AI	AJ	AK	AL	AM	AN	AO	AP	AQ	AR	AS	AT	AU	AV	AW	AX	AY	AZ	BA	BB	BC	BD	BE	BF	BG	BH	BI	BJ	BK	BL	BM	BN	BO	BP	BQ	BR	BS	BT	BU	BV	BW	BX	BY	BZ	CA	CB	CC	CD	CE	CF	CG	CH	CI	CJ	CK	CL	CM	CN	CO	CP	CQ	CR	CS	CT	CU	CV
1	Question Type / Takeaway	Q. Type?	No. of Qs	PS + DS Percentile	PS Popularity (Qs 1-230)	PS Percentile (Estimated) (Qs 1-230)	DS Popularity (Qs 231-404)	DS Percentile (Estimated) (Qs 231-404)	Appears in Questions:

2	Algebra	Yes	108	58%	61	59%	47	57%	025	027	031	035	049	051	056	058	065	069	071	074	078	081	083	088	091	093	100	103	104	106	109	110	112	113	116	117	124	127	128	130	131	139	150	155	157	165	168	176	180	182	184	185	186	188	189	192	193	196	198	202	206	212	215	216	220	222	225	226	228	243	246	247	260	269	271	273	274	275	279	288	291	300	303	306	308	313	315	318	320	326	327	330	336	337	338	344	345	350	351	355
3	Algebra, Equations		51	56%	32	57%	19	55%	027	031	035	051	056	058	074	081	083	088	091	093	106	110	113	127	130	150	155	157	168	176	180	182	186	188	202	215	216	220	222	226	246	247	271	279	288	300	303	306	327	337	345	350	351	359	360	366	367	386	393
4	Algebra, Equations, Product / Quotient (not) Equal to Zero		11	55%	6	63%	5	44%	081	083	106	155	222	228	246	247	288	366	386
5	Algebra, Equations, Quadratic Equations		21	58%	14	61%	7	55%	051	058	074	081	093	110	127	168	176	182	188	202	216	226	271	279	300	306	366	367	393
6	Algebra, Equations, Simultaneous Equations		10	61%	6	56%	4	68%	035	113	127	150	157	188	300	350	360	386
7	Algebra, Equations, Single Equation Containing Two Variables		6	53%	1	43%	5	65%	100	327	337	345	351	359
8	Algebra, Equations, Undefined Fraction / Quotient		6	56%	4	80%	2	26%	056	222	226	228	247	303
9	Algebra, General Tip		8	62%	7	40%	1	90%	013	049	069	100	103	112	196	387
10	Algebra, Inequalities		44	58%	17	58%	27	57%	025	027	056	065	078	116	117	124	128	139	184	185	189	192	193	225	228	243	260	269	273	274	275	291	308	313	315	318	320	326	330	336	338	344	355	359	361	368	370	373	391	392	393	401
11	Algebra, Inequalities, Absolute Values		8	52%	5	37%	3	72%	025	027	065	116	193	330	344	391
12	Algebra, Inequalities, Double Inequality		5	71%	3	77%	2	63%	117	185	228	320	359
13	Algebra, Inequalities, Product / Quotient Smaller / Greater than 0		2	33%	1	24%	1	45%	056	308
14	Algebra, Invented Operations / Non-Arithmetic Sequences		11	70%	10	64%	1	77%	071	088	104	109	131	165	196	198	206	212	364
15	Combinations & Probability	Yes	15	55%	11	70%	4	35%	011	140	142	148	162	170	182	187	201	214	221	236	297	302	331
16	Combinations & Probability, Combinations		7	69%	6	78%	1	58%	140	148	182	187	201	214	331
17	Combinations & Probability, Probability		8	47%	5	61%	3	28%	011	142	162	170	221	236	297	302
18	DS-Specific Takeaways:
19	DS, Double Overlap - Usually C or E		6				6	26%	248	254	266	267	305	316
20	DS, Geometry: Drawings are unreliable		1				1	80%	369
21	DS, Geometry: Geometric Sizes are Always Positive		1				1	97%	398
22	DS, Geometry: Mentally ‘Stretch’ the Drawing...		13				13	38%	231	235	260	263	264	265	287	301	311	343	347	353	382
23	DS, Geometry: The More Regular the Shape...		3				3	43%	263	301	353
24	DS: “what is the value of X?” - Find a Single Value		9				9	51%	262	281	288	300	305	323	334	376	404
25	DS: A Single Equation Containing Two Variables...		2				2	49%	232	397
26	DS: A Single Quadratic Equation with a Single Variable - (In)sufficient		3				3	49%	279	300	367
27	DS: Do not Find the Value about which You are Asked		22				22	33%	232	233	239	240	241	242	250	259	262	265	267	273	280	282	284	287	317	332	362	394	398	400
28	DS: If Statement (1) is Too Complex - BD / ACE		7				7	50%	251	277	309	310	326	351	391
29	DS: In "Yes/No"-questions - Even a "No" is Sufficient		5				5	16%	233	246	259	265	287
30	DS: Inaccurate Expressions Only - Insufficient		4				4	24%	231	248	282	327
31	DS: Relative Expression + Accurate Quantity - Sufficient		17				17	47%	233	234	239	244	245	250	319	324	325	332	340	345	360	368	369	380	397
32	DS: Simplify; Figure out What’s Needed ahead of Time		2				2	44%	282	331
33	DS: The Greater the Number of Different Data Required - C or E		3				3	15%	248	254	268
34	DS: The Initial Data, Statement 1 & 2 will NEVER contradict...		19				19	63%	234	239	260	276	292	328	330	334	338	343	363	375	384	386	389	391	395	396	403
35	DS: Tricky Questions - Work Thoroughly, Slowly		3				3	77%	355	367	371
36	DS: Two Different Conclusions? Yes - Insufficient; No -Sufficient.		74				74	58%	243	246	248	255	258	261	262	264	266	270	271	273	274	276	277	279	289	291	292	293	295	296	301	302	305	306	308	309	313	314	315	316	320	321	324	325	328	329	333	337	342	344	345	348	354	355	356	357	358	361	364	365	370	371	372	373	375	378	380	381	385	387	388	389	390	391	392	394	395	396	397	401	403	404
37	DS: Two Distinct Linear Equations with Two Variables - Sufficient		2				2	27%	232	322
38	Fractions & Decimals	Yes	36	52%	30	47%	6	59%	004	008	012	030	031	033	045	053	057	059	063	072	076	082	083	089	092	135	139	147	163	167	172	186	199	203	210	215	220	230	272	275	289	354	399	404
39	Fractions & Decimals, (Non) Terminating Decimal		2	81%	1	88%	1	71%	203	354
40	Fractions & Decimals, Decimals		8	67%	7	45%	1	97%	012	053	089	092	135	139	203	399
41	Fractions & Decimals, Decimals, Mult. / Div. by 10^n		5	62%	4	36%	1	97%	012	089	092	139	399
42	Fractions & Decimals, Decimals, Mult. / Div. two Decimals		5		5	54%			053	092	135	139	203
43	Fractions & Decimals, Fractions		24	55%	22	50%	2	62%	004	008	030	033	045	057	059	063	072	076	082	083	147	163	167	172	186	199	210	215	220	230	272	404
44	Fractions & Decimals, Fractions, Add or Subtract		13		13	46%			004	030	045	057	063	076	082	083	167	172	186	199	220
45	Fractions & Decimals, Fractions, Change Expressed as Fraction		3	52%	2	73%	1	24%	163	172	272
46	Fractions & Decimals, Fractions, Divide Two Fractions		7		7	49%			008	033	045	059	199	215	230
47	Fractions & Decimals, Fractions, Mixed / Improper Fraction		2		2	25%			045	072
48	Fractions & Decimals, Fractions, Multiply Two Fractions		2		2	67%			147	163
49	General Approach		4		4	19%			010	020	022	122
50	General phrasing, (Multiple) variables		14		14	50%			009	048	057	061	062	083	106	118	132	158	167	190	207	215
51	General phrasing, Approximately		1		1	24%			055
52	General phrasing, Complex (Verbal) Expression		42	49%	28	52%	14	45%	004	006	033	035	049	051	058	072	073	081	083	102	106	109	111	122	125	138	167	170	172	188	207	210	211	219	224	230	252	274	275	280	284	287	288	293	303	310	327	345	393	404
53	General phrasing, Complex Expression, Always Simplify		32	49%	22	50%	10	49%	004	006	033	049	051	072	073	083	102	106	109	111	122	125	138	167	170	172	188	210	211	219	252	274	275	280	293	303	327	345	393	404
54	General phrasing, Complex Expression, Connecting Element		5	69%	2	79%	3	56%	138	224	275	303	404
55	General phrasing, Complex Expression, Don't do the Math		21	50%	14	56%	7	42%	004	058	072	106	109	111	122	125	138	167	172	188	210	211	252	275	280	284	287	345	393
56	General phrasing, Complex Expression, Extract Common Factor		14	48%	12	56%	2	38%	035	051	072	073	081	106	109	167	188	210	219	230	288	303
57	General phrasing, Complex Multiplication		7		7	26%			015	031	035	042	053	111	135
58	General phrasing, Conversion		5	29%	4	29%	1	30%	002	008	064	192	282
59	General phrasing, Fewer / More than 5 Steps or 12 Counts		9	25%	7	35%	2	11%	047	052	072	073	079	115	125	241	257
60	General phrasing, Gaps		1		1	5%			011
61	General phrasing, Greatest / Least Value		4		4	36%			016	068	090	157
62	General phrasing, Profit		3	73%	1	91%	2	48%	210	234	393
63	General phrasing, Roman Numerals		6		6	52%			049	091	104	110	138	225
64	General phrasing, Rounding		3	74%	2	84%	1	59%	192	196	333
65	General phrasing, Setting up an Equation		21	36%	14	30%	7	44%	007	009	013	018	020	038	048	061	085	097	100	143	150	167	232	253	256	290	325	393	397
66	General phrasing, Which of the Following?		8		8	46%			016	025	075	077	110	147	189	206
67	General tip		4	76%	2	91%	2	55%	202	216	277	376
68	General, Maybe Questions (distinction made in order to solve)		2		2	54%			025	222
69	General, Must Questions (distinction made in order to solve)		25	53%	22	55%	3	50%	027	034	044	046	050	056	073	078	080	081	090	136	159	178	189	193	199	200	208	224	227	228	262	306	382
70	General, Ugly Numbers		57	50%	48	44%	9	57%	005	006	008	012	019	021	023	028	040	042	053	054	055	063	064	066	068	072	075	076	079	082	085	096	098	105	111	112	115	119	122	124	125	134	138	139	147	164	169	176	179	188	191	195	199	200	205	210	283	296	306	313	326	334	342	370	399
71	General, Units digit, Ballparking, Guestimation		2		2	49%			028	197
72	Geometry	Yes	53	50%	29	45%	24	57%	017	018	026	029	032	034	039	043	050	056	058	067	077	095	099	101	107	114	123	145	146	156	159	174	177	183	202	218	224	231	235	237	260	263	264	287	301	304	311	343	346	347	353	367	369	371	379	382	383	384	386	398	400
73	Geometry, 2D		47	50%	25	46%	22	54%	017	018	026	029	039	043	050	056	058	067	077	095	099	101	107	123	145	146	156	174	177	183	202	218	224	231	235	237	260	263	264	287	301	304	311	343	346	347	353	367	369	379	382	383	386	398	400
74	Geometry, 2D, Area Ratios, Common Systems / (Dis)similar Shapes		5	53%	3	54%	2	52%	039	156	177	263	379
75	Geometry, 2D, Circles		6	60%	3	55%	3	66%	095	107	177	287	369	379
76	Geometry, 2D, Coordinate Geometry		13	49%	8	47%	5	53%	050	056	067	077	101	107	183	218	235	264	347	382	383
77	Geometry, 2D, Polygons		4	73%	3	54%	1	98%	026	123	224	400
78	Geometry, 2D, Quadrilaterals		8	50%	5	41%	3	62%	017	018	058	174	202	301	311	400
79	Geometry, 2D, Triangles		18	48%	9	43%	9	53%	026	029	043	095	107	123	145	156	174	231	237	260	343	346	347	353	386	398
80	Geometry, 2D, Triangles, Isosceles		3	38%	2	15%	1	67%	026	043	347
81	Geometry, 2D, Triangles, Right		13	54%	7	51%	6	57%	029	095	107	123	145	156	174	237	260	343	353	386	398
82	Geometry, 2D, Triangles, Right, Equilateral / “30°-60°-90°”		3		3	64%			123	145	174
83	Geometry, 2D, Triangles, Right, Isosceles		4	71%	1	68%	3	75%	156	343	353	386
84	Geometry, 2D, Unfamiliar Polygon Shape / Hybrid Areas		6	48%	4	53%	2	41%	039	099	146	202	237	367
85	Geometry, 3D		6	52%	4	37%	2	73%	032	034	114	159	343	371
86	Geometry, 3D, Areas		3	62%	2	59%	1	65%	114	159	343
87	Geometry, 3D, Inserting / Filling / Combining (Non) Rigid Shapes		2	63%	1	50%	1	81%	114	371
88	Geometry, 3D, Volume Ratios, (Dis)similar Shapes		1		1	14%			032
89	Integers	Yes	42	53%	24	57%	18	49%	005	044	046	054	062	074	081	092	098	121	126	136	141	154	165	175	176	178	181	195	200	205	215	219	232	258	271	277	278	285	289	292	309	317	328	334	349	354	356	357	388	390
90	Integers, Digits		9	58%	4	61%	5	54%	046	092	200	219	258	292	334	349	388
91	Integers, Divisibility & Prime Numbers		24	57%	17	58%	7	55%	005	044	054	074	081	121	126	136	141	165	175	176	178	181	195	205	215	232	285	309	354	356	357	390
92	Integers, Odd & Even Numbers		6	33%	1	27%	5	40%	062	271	277	278	317	356
93	Integers, Remainders		7	53%	6	50%	1	56%	044	081	098	136	154	178	328
94	Overlaps	Yes	13	58%	5	72%	8	41%	118	120	152	208	229	248	254	266	267	305	316	362	389
95	Overlaps, Double Overlap		10	47%	2	52%	8	41%	118	120	248	254	266	267	305	316	362	389
96	Overlaps, Triple Overlap		3		3	85%			152	208	229
97	Percents	Yes	58	46%	36	45%	22	47%	001	006	010	012	015	024	029	038	040	053	055	060	070	080	086	087	089	094	106	108	119	120	122	125	130	134	153	162	169	172	191	199	207	208	210	229	234	239	250	259	268	269	272	286	294	313	318	319	321	324	332	340	345	351	360	362	392	393
98	Percents, Changes		22	40%	16	44%	6	34%	001	024	029	055	060	086	087	089	108	122	125	130	153	169	191	207	250	268	272	286	319	340
99	Percents, Changes, Compound Interest		6	40%	4	58%	2	17%	060	130	153	191	250	268
100	Percents, Fraction / Percent Tree		5	35%	3	47%	2	20%	070	094	162	234	294