Suppose that 350 cervical cancer cases were identified and a random sample of women of the same age range who were admitted to the hospital included 500 eligible controls. after independent blood tests of all cases and controls, 90% of cases were positive for hpv antibodies while 63% of controls were positive for antibodies to the virus. what is the appropriate measure of association and its value? choose

a)the ratio of the odds of exposure among cases and controls equal to 5.3

b)the ratio of hpv-exposed percentages equal to 1.4

c)the number of exposed cases divided by the number of exposed controls equal to 1.0

d)the number of nonexposed cases divided by the number of nonexposed controls equal to 0.2

show work

a)The ratio of the odds of exposure among cases and controls equal to 5.3

Step-by-step explanation:

Correct option is:

The ratio of the odds of exposure among cases and controls equal to 5.3

Solution:

Odds for cases=0.9/0.1=9

Odds for controls=0.63/0.37=1.703

Odds ratio=9/1.703=5.3

Hence the correct option is  a)The ratio of the odds of exposure among cases and controls equal to 5.3

the system of inequity is

step-by-step explanation:

from the given graph it is noticed that we have two related lines. one is solid and another is dashed.

if a line passing through two points, then the equation of line is

the solid line passing through the points (0,4) and (4,0).

the related equation of solid line is .

similarly, find the related equation of dashed line. the dashed liune passing through the points (0,0) and (3,1).

the related equation of dashed line is

from the given graph it is noticed that the point (0,1) lies on the shaded region, therefore the point (0,1) must be satisfied by the related equations.

check the related equations by the point (0,1).

this statement is true if the sign of inequality is < instead of equality. since it is an solid line therefore the sign of inequality will be . the required inequality is

similarly, check the second related equation.

it is a dashed line, so this statement is true if the sign of inequality is > . the required inequality is