how often does the team that wins the first away game win the second game in the nba playoffs series

The Chicago Stags won in a win on the road in Game 1 of the 1947 Semifinals versus the Washington Capitols on April 2, 1947.

	TEAM	DATE	W	TM		OPP	RESULT	MIN	PTS	AST	FGM	FGA	FG%	FTM	FTA	FT%	TS%	PF
1	Stags	4/2/1947	1	CHI	@	WAS	W 81-65	240	81		36			9	20	45.0		24
2	Stags	4/3/1947	1	CHI	@	WAS	W 69-53	240	69		26			17	21	81.0		24
3	Warriors	4/6/1947	1	PHI	@	STL	W 75-59	240	75		27	93	29.0	21	26	80.8	35.9	15
4	Capitols	4/12/1947	1	WAS	@	CHI	W 67-55	240	67		26			15	22	68.2		21
5	Warriors	4/14/1947	1	PHI	@	NYK	W 72-53	240	72		28			16	23	69.6		19
6	Warriors	4/19/1947	1	PHI	@	CHI	W 75-72	240	75		27			21	30	70.0		26
7	Bullets	3/25/1948	1	BAL	@	CHI	W 75-72	240	75		20			35	41	85.4		25
8	Warriors	3/25/1948	1	PHI	@	STL	W 65-64	240	65	3	24	100	24.0	17	29	58.6	28.8	15
9	Stags	3/28/1948	1	CHI	@	BOS	W 79-72	240	79		27			25	34	73.5		32
10	Bombers	3/30/1948	1	STL	@	PHI	W 56-51	240	56	3	20	76	26.3	16	22	72.7	32.7	16
11	Stags	4/2/1948	1	CHI	@	BOS	W 81-74	240	81		28			25	37	67.6		23
12	Warriors	4/6/1948	1	PHI	@	STL	W 85-46	240	85	12	34	96	35.4	17	28	60.7	39.2	16
13	Bullets	4/7/1948	1	BAL	@	CHI	W 73-67	240	73		19			35	43	81.4		29
14	Bullets	4/13/1948	1	BAL	@	PHI	W 66-63	240	66	9	20	105	19.0	26	34	76.5	27.5	25
15	Capitols	3/23/1949	1	WAS	@	PHI	W 92-70	240	92	13	35	94	37.2	22	29	75.9	43.1	25
16	Royals	3/23/1949	1	ROC	@	STL	W 66-64	240	66		18	61	29.5	30	41	73.2	41.8	10
17	Lakers	3/24/1949	1	MIN	@	CHI	W 101-85	240	101		38			25	37	67.6		23
18	Lakers	3/27/1949	1	MIN	@	ROC	W 80-79	240	80		28	69	40.6	24	25	96.0	50.0	17
19	Lakers	4/8/1949	1	MIN	@	WAS	W 94-74	240	94		33			28	36	77.8		25
20	Lakers	3/21/1950	1	MIN	@	ROC	W 78-76	240	78	18	28	57	49.1	22	24	91.7	57.7	24
21	Knicks	3/21/1950	1	NYK	@	WAS	W 90-87	240	90	14	27	70	38.6	36	40	90.0	51.4	32
22	Nationals	3/23/1950	1	SYR	@	PHI	W 59-53	240	59	9	19	70	27.1	21	32	65.6	35.1	28
23	Pistons	3/23/1950	1	FTW	@	ROC	W 90-84	240	90		32	71	45.1	26	37	70.3	51.6	30
24	Lakers	3/25/1950	1	MIN	@	CHI	W 75-67	240	75		29			17	25	68.0		20
25	Lakers	3/28/1950	1	MIN	@	FTW	W 89-82	240	89		29			31	36	86.1		27