A survey of 417 individuals asks questions about how often they exercise, marital status, and annual income. The accompanying table shows a portion their responses.

ID	Exercise	Married	Income
1	Always	Yes	106299
2	Sometimes	Yes	86570
417	Often	No	92690

a.Find the mean and the median for Income.(Round "mean" to 2 decimal places.)

b-1.Find the mean income for married individuals and the mean income for non-married individuals.(Round your answers to 2 decimal places.)

b-2.Which subgroup earns more? multiple choice 1

• Married individuals
• Non-married individuals

c-1.Find the mean income for individuals who always exercise and the mean income for individuals who never exercise.(Round your answers to 2 decimal places.)

c-2.Which subgroup earns more? multiple choice 2

• Individuals who always exercise
• Individuals who never exercise

ID	Exercise	Married	Income
1	Always	Yes	106299
2	Sometimes	Yes	86570
3	Sometimes	Yes	73408
4	Never	No	52524
5	Sometimes	No	85212
6	Always	Yes	59399
7	Never	No	56357
8	Never	No	56639
9	Sometimes	No	68558
10	Never	No	79719
11	Never	Yes	67688
12	Often	Yes	108679
13	Often	Yes	84490
14		No	46667
15	Sometimes	Yes	86465
16	Sometimes	Yes	108898
17	Sometimes	No	77445
18	Sometimes	Yes	99505
19	Never	No	80934
20	Never	No	56194
22	Never	Yes	57945
23	Never	Yes	58385
24	Sometimes	No	107962
25	Never	No	53211
26	Never	Yes	77921
27	Sometimes	Yes	48989
28	Never	No	106979
29	Never	No	78881
30	Never	Yes	73721
31	Often	Yes	47517
32	Never	Yes	64613
33	Sometimes	Yes	88627
34	Never	No	99348
35	Often	Yes	116150
36	Never	Yes	70142
37	Often	Yes	105761
38	Always	Yes	64238
39	Sometimes	Yes	119890
40	Often	No	49254
41	Always	Yes	50768
42	Sometimes	Yes	92388
43	Often	Yes	74712
44	Sometimes	Yes	108156
45	Often	Yes	117840
46	Always	Yes	92978
47	Never	Yes	48167
48	Often		81397
49	Always	Yes	85470
50	Never	Yes	51069
51	Sometimes	Yes	119354
52	Never	Yes	71926
53	Sometimes	Yes	97712
54	Never	Yes	54422
56	Sometimes	Yes	55873
57	Never	No	70570
58	Sometimes	Yes	55354
59	Often	Yes	88847
60	Always	No	99699
61	Always	Yes	50263
62		Yes	58701
63	Always	Yes	119851
64	Never	No	64212
65	Always	Yes	93229
66	Sometimes	Yes	67111
67	Sometimes	No	46846
68	Always	Yes	65970
69	Often	Yes	52386
70	Never	No	66410
71	Often	No	59487
72	Always	Yes	69227
73	Always	Yes	112365
74	Often	Yes	67915
75	Always	No	78242
76	Always	Yes	83562
77	Always	Yes	46033
78	Often	Yes	63517
79	Never	No	72840
80	Often	No	51055
81	Often	Yes	50527
82	Often	Yes	64848
83	Never	No	51075
84	Often	Yes	80555
85	Always	Yes	114560
86		Yes	73282
87	Often	Yes	55654
88	Often	No	82289
89	Always	No	68131
90	Sometimes	Yes	47395
91	Never	No	52754
92	Never	Yes	73040
93	Sometimes	Yes	93536
94	Often	Yes	70274
95	Often	Yes	73249
96	Never	Yes	115270
97	Never	No	97482
98	Always	Yes	45417
99	Often	Yes	80479
100	Often	Yes	50241
101	Sometimes	No	72821
102	Always	Yes	103212
103	Sometimes	Yes	77459
104	Sometimes	Yes	53771
105	Never	No	54519
106	Sometimes	No	64723
107	Always	Yes	61394
108	Never	No	86534
109	Never	No	116295
110	Sometimes	No	112284
111	Never		108429
112	Never	Yes	93504
113	Often	Yes	90710
114	Often	Yes	117846
115	Never	No	100573
116	Sometimes	Yes	92923
117	Sometimes	Yes	51933
118	Sometimes	No	66025
119	Sometimes	Yes	93476
120	Never	No	109208
121	Never	No	112914
122	Sometimes	No	80583
123	Never	Yes	83428
124	Never	Yes	53841
125	Sometimes	No	51596
126	Never	No	110071
127	Never	Yes	118101
128	Sometimes	Yes	65100
129	Never	No	50390
130	Never	No	102300
131	Never	Yes	94035
132	Often	Yes	75077
133	Never	Yes	49055
134	Sometimes	Yes	64528
135	Never	No	89282
136	Often	Yes	83608
137	Never	Yes	100582
138	Often	Yes	119282
139	Always	Yes	95126
140	Sometimes	Yes	68596
141	Often	No	100471
142	Always	Yes	104224
143		Yes	49429
144	Often	Yes	109180
145	Sometimes	Yes	53850
146	Often	Yes	66652
147	Always	Yes	53477
148	Never	Yes	112611
149	Often	Yes	47602
150	Always	Yes	48292
151	Never	Yes	97177
152	Sometimes	Yes	105812
153	Never	Yes	87592
154	Sometimes	Yes	72862
155	Never	Yes	106307
156	Often	Yes	84335
157	Sometimes	Yes	52917
158	Never	No	100700
159	Sometimes	Yes	59507
160	Often	Yes	72487
161	Always	No	119615
162	Always	Yes	92463
163	Always	Yes	51498
164	Always	Yes	97973
165	Never	No	57492
166	Always	Yes	74614
167	Sometimes	Yes	106331
168	Sometimes	No	98549
169	Always	Yes	112672
170	Often	Yes	72869
171	Never	No	79458
172	Often	No	58996
173	Always	Yes	52208
174	Always	Yes	64627
175		Yes	96332
176	Always	No	74485
177	Always	Yes	82289
178	Always	Yes	54796
179	Often	Yes	107571
180	Never	No	106427
182	Often	Yes	64236
183	Often	Yes	74512
184	Never	No	113774
185	Often	Yes	117754
186	Always	Yes	54740
187	Often	Yes	112273
188	Often	Yes	118771
189	Often	No	103431
190	Always	No	89614
191	Sometimes	Yes	47718
192	Never	No	61742
193	Never	Yes	88125
194	Sometimes	Yes	72608
195	Often	Yes	100456
196	Often	Yes	118688
197	Never	Yes	58692
198	Never	No	112439
199	Always	Yes	116421
200	Often	Yes	52544
201	Often	Yes	77051
202	Sometimes	No	111143
203	Always	Yes	61119
204	Sometimes	Yes	113404
205	Sometimes	Yes	96804
206	Never	No	69337
207	Sometimes	No	66053
208	Always	Yes	75423
209	Never	No	104764
210	Never	No	84577
211	Sometimes	No	98727
212	Never	No	46678
213	Never	Yes	86663
214	Often	Yes	83919
215	Often	Yes	104607
216	Never	No	97266
217	Sometimes	Yes	86606
218	Sometimes	Yes	81847
219	Sometimes	No	98433
220	Sometimes	Yes	115008
221	Never	No	117553
222	Never	No	76032
223	Sometimes	No	106830
224	Never	Yes	72264
225	Never	Yes	55874
226	Sometimes	No	64586
227	Never	No	75321
228	Never	Yes	107919
229	Sometimes	Yes	82446
230	Never	No	117923
231	Never	No	84526
232	Never	Yes	105006
233	Often	Yes	73872
234	Never	Yes	83685
235	Sometimes	Yes	98805
236	Never	No	67078
237	Often	Yes	46946
238	Never	Yes	94410
239	Often	Yes	107639
240	Always	Yes	109313
241	Sometimes	Yes	102122
242	Often	No	61744
243	Always	Yes	117130
244	Sometimes	Yes	45573
245	Often	Yes	64262
246	Sometimes	Yes	70262
247	Often	Yes	111732
248	Always	Yes	109090
249	Never	Yes	69794
250	Often	Yes	117336
251	Always	Yes	72516
252	Never	Yes	54551
253	Sometimes	Yes	105972
254	Never	Yes	66303
255	Sometimes	Yes	74737
256	Never	Yes	62333
257	Often	Yes	109984
258	Sometimes	Yes	95859
259	Never	No	45504
260	Sometimes	Yes	81524
261	Often	Yes	112302
262	Always	No	116590
263	Always	Yes	73907
264	Always	Yes	84398
265	Always	Yes	107651
266	Never	No	63453
267	Always	Yes	83712
268	Sometimes	Yes	105032
269	Sometimes	No	85729
270	Always	Yes	82345
271	Often	Yes	111752
272	Never	No	88604
273	Often	No	98769
274	Always	Yes	111838
275	Always	Yes	101799
276	Often	Yes	109743
277	Always	No	92627
278	Always	Yes	73387
279	Always	Yes	89328
280	Often	Yes	65380
281	Never	No	65324
282	Often	No	114935
283	Often	Yes	47041
284	Often	Yes	101196
285	Never	No	55639
286	Often	Yes	64126
287	Always	Yes	48901
288	Often	Yes	51294
289	Often	Yes	71022
290	Often	No	62118
291	Always	No	85027
292	Sometimes	Yes	73386
293	Never	No	90068
294	Never	Yes	76299
295	Sometimes	Yes	70831
296	Often	Yes	74891
297	Often	Yes	100947
298	Never	Yes	54722
299	Never	No	47543
300	Always	Yes	82426
301	Often	Yes	113812
302	Often	Yes	75182
303	Sometimes	No	66953
304	Always	Yes	115768
305	Sometimes	Yes	110442
306	Sometimes	Yes	75402
307	Never	No	96123
308	Sometimes	No	52227
309	Always	Yes	48243
310	Never	No	82133
311	Never	No	82655
312	Sometimes	No	83649
313	Never	No	116423
314	Never	Yes	54135
315	Often	Yes	79688
316	Often	Yes	75747
317	Never	No	97314
318	Sometimes	Yes	94948
319	Sometimes	Yes	102868
320	Sometimes	No	117381
321	Sometimes	Yes	95934
322	Never	No	91962
323	Never	No	87073
324	Sometimes	No	96695
325	Never	Yes	89155
326	Never	Yes	88952
327	Sometimes	No	66399
328	Never	No	50548
329	Never	Yes	56691
330	Sometimes	Yes	47653
331	Never	No	107956
332	Never	No	55780
333	Never	Yes	68360
334	Often	Yes	72767
335	Never	Yes	57165
336	Sometimes	Yes	116394
337	Never	No	82649
338	Often	Yes	78512
339	Never	Yes	54931
340	Often	Yes	76977
341	Always	Yes	54948
342	Sometimes	Yes	107370
343	Often	No	74837
344	Always	Yes	77426
345	Sometimes	Yes	109886
346	Often	Yes	81429
347	Sometimes	Yes	58126
348	Often	Yes	67948
349	Always	Yes	70746
350	Never	Yes	108391
351	Often	Yes	90701
352	Always	Yes	102028
353	Never	Yes	56228
354	Sometimes	Yes	118260
355	Never	Yes	114733
356	Sometimes	Yes	118314
357	Never	Yes	115014
358	Often	Yes	59925
359	Sometimes	Yes	74021
360	Never	No	48827
361	Sometimes	Yes	73695
362	Often	Yes	101925
363	Always	No	83864
364	Always	Yes	88863
365	Always	Yes	113422
366	Always	Yes	55907
367	Never	No	104936
368	Always	Yes	108521
369	Sometimes	Yes	48044
370	Sometimes	No	85924
371	Always	Yes	76856
372	Often	Yes	50308
373	Never	No	59106
374	Often	No	108717
375	Always	Yes	68020
376	Always	Yes	56102
377	Often	Yes	96771
378	Always	No	87763
379	Always	Yes	100919
380	Always	Yes	113117
381	Often	Yes	70814
382	Never	No	69317
383	Often	No	107757
384	Often	Yes	49143
385	Often	Yes	69438
386	Never	No	80827
387	Often	Yes	83438
388	Always	Yes	113395
389	Often	Yes	76658
390	Often	Yes	79280
391	Often	No	89335
392	Always	No	61420
393	Sometimes	Yes	94930
394	Never	No	100742
395	Never	Yes	58793
396	Sometimes	Yes	107908
397	Often	Yes	50939
398	Often	Yes	65114
399	Never	Yes	104644
400	Never	No	81845
401	Always	Yes	97135
402	Often	Yes	106988
403	Often	Yes	73198
404	Sometimes	No	119058
405	Always	Yes	54699
406	Sometimes	Yes	118222
407	Sometimes	Yes	105896
408	Never	No	48867
409	Sometimes	No	56773
410	Always	Yes	67823
411	Never	No	112549
412	Never	No	65620
413	Sometimes	No	51504
414	Never	No	71942
415	Never	Yes	69233
416	Often	Yes	92174
417	Often	No	92690