Find correlation between number of aids and syphilis cases

Reference no: EM131017795

Certain types of diseases tend to occur in clusters. In particular, persons affected with AIDS, syphilis, and tuberculosis may have some common characteristics and associations which increase their chances of contracting these diseases. The following table lists the number of reported cases by state in 2001.

State	AIDS	Syphills	Tuber	State	AIDS
AL	438	720	265	MT	15
AK	18	9	54	NE	74
AZ	540	1147	289	NV	252
AR	199	239	162	NH	40
CA	4315	3050	3332	NJ	1756
CO	288	149	138	NM	143
CT	584	165	121	NY	7476
DE	248	79	33	NC	942
DC	870	459	74	ND	3
FL	5138	2914	1145	OH	581
GA	1745	1985	575	OK	243
HI	124	41	151	OR	259
ID	19	11	9	PA	1840
IL	1323	1541	707	HI	103
IN	378	529	115	SC	729
IA	90	44	43	SD	25
KS	98	88	63	TN	602
KY	333	191	152	TX	2892
LA	861	793	294	UT	124
ME	48	16	20	VT	25
MD	1860	937	262	VA	951
MA	765	446	270	WA	532
MI	548	1147	330	WV	100
MN	157	132	239	WI	193
MS	418	653	154	WY	5
MO	445	174	157	All States	41,868

a. Construct a scatterplot of the number of AIDS cases versus the number of syphilis cases.

b. Compute the correlation between the number of AIDS cases and the number of syphilis cases.

c. Does the value of the correlation coefficient reflect the degree of association shown in the scatterplot?

d. Why do you think there may be a correlation between these two diseases?

Reference no: EM131017795

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