subject
Mathematics, 06.04.2021 02:30 18080980

Only 0.1% of the individuals in a certain population have a particular disease (an incidence rate of 0.001). Of those who have the disease, 95% test positive when a certain diagnostic test is applied. Of those who do not have the disease, 80% test negative when the test is applied. Suppose that an individual from this population is randomly selected and given the test. Required:
a. Construct a tree diagram having two first-generation branches, for has disease and doesn't have disease, and two second-generation branches leading out from each of these, for positive test and negative test. Then enter appropriate probabilities on the four branches.
b. Use the general multiplication rule to calculate P(has disease and positive test).
c. Calculate P(positive test).
d. Calculate P(has disease O positive test). Does the result surprise you? Give an intuitive explanation for the size of this probability.

ansver
Answers: 2

Another question on Mathematics

question
Mathematics, 21.06.2019 13:00
What scale factor was applied to the first rectangle to get the resulting image interior answer as a decimal in the box
Answers: 3
question
Mathematics, 21.06.2019 15:00
Which property is illustrated by the statement given below? raj raj.
Answers: 3
question
Mathematics, 21.06.2019 19:00
When keisha installed a fence along the 200 foot perimeter of her rectangular back yard, she left an opening for a gate.in the diagram below, she used x to represent the length in feet of the gate? what is the value? a. 10 b. 20 c. 25 d. 30
Answers: 1
question
Mathematics, 21.06.2019 19:30
Mr. brettler is hanging up a 5-foot tall rectangular welcome sign in the gym. he has drawn a sketch on a coordinate grid. he has the lower vertices of the sign at (9, –3) and (–6, –3). where would the upper vertices be on the grid?
Answers: 1
You know the right answer?
Only 0.1% of the individuals in a certain population have a particular disease (an incidence rate of...
Questions