For an etiologic factor to be judged to be causally related to a disease,
which of the following must be true? group of answer choices
the results of an epidemiologic study of the factor must be externally valid
the etiologic factor is equally distributed throughout the population.
persons exposed to the etiologic factor have a higher prevalence of disease
exposure to the etiologic factor must precede the onset of the disease.

1; 35 is the ratio

step-by-step explanation:

homozygous. one is homozygous, while two is heterozygous.

85.560%

step-by-step explanation:

conditional probability is defined as:

p(a|b) = p(a∩b) / p(b)

in other words, the probability that a occurs, given that b has occurred = the probability that both a and b occur / the probability that b occurs.

in this example:

p(turns 64 | turns 44) = p(turns 64 & turns 44) / p(turns 44).

if someone turns 64, they must have already turned 44, so:

p(turns 64 | turns 44) = p(turns 64) / p(turns 44)

on page 42, we see that of the original 100,000, 94944 turn 44, and 81234 turn 64.   therefore:

p(turns 64 | turns 44) = 81234 / 94944

p(turns 64 | turns 44) = 0.85560

true

step-by-step explanation:

according to the national european world center, the engineering of the ford company on elon musk's flame throwers proved the globalization of the natural wallabies and therefore, results in the growth product domestication in almonds.