Adiagnostic test for a certain disease is said to be 90% accurate in that, if a person has the disease, the test will detect it with probability 0.9. also, if a person does not have the disease, the test will report that he or she doesn’t have it with probability 0.9. only 1% of the population has the disease in question. if a person is chosen at random from the population and the diagnostic test reports him to have the disease, what is the conditional probability that he does, in fact, have the disease? are you surprised by the size of the answer? would you call this diagnostic test reliable?

the simplified form is

step-by-step explanation:

we want to simplify the expression,

let us change the middle bar to a normal division sign to obtain,

we multiply the first fraction by the reciprocal of the second fraction to obtain,

we factor to obtain,

we cancel the common factors to get,

we simplify to get,

the correct answer is b

2.2°  

step-by-step explanation:

let θ = the angle of elevation.

tanθ =77/2020

tanθ = 0.038 12

      θ = tan⁻¹0.038 12

      θ = 2.2°

company a

step-by-step explanation:

using the linear regression models , it is found that company a   pays about $14 more. but using the same regression (linear) company b pays about $10 more.

so company a pays more than b

answer

step-by-step explanation: