1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Zepler [3.9K]
3 years ago
15

When doing blood testing for a viral infection, the procedure can be made more efficient and less expensive by combining partial

samples of different blood specimens. If samples from three people are combined and the mixture tests negative, we know that all three individual samples are negative. Find the probability of a positive result for three samples combined into one mixture, assuming the probability of an individual blood sample testing positive for the virus is 0.03.
Biology
2 answers:
Papessa [141]3 years ago
7 0

Answer:

The best way to approach this type of problem is to use the "complement method" ...  

P(positive result) = 1 - P(negative result)  

= 1 - (1 - 0.03)^3  

= 1 - 0.97^3 = 0.087327 or 8.7%  

Explanation:

romanna [79]3 years ago
5 0

Answer:

0.087

Explanation:

Given -

Probability of positive blood sample for an individual is equal to 0.03

Number of sample is equal to three

Now , probability of getting a positive result for three sample combined into one single mixture is equal to

1 - (P)^ 3

where P represents the probability of getting all individual negative test result

Substituting the given values in above equation, we get

P_{mixture} = 1 - (1-0.03)^3\\P_{mixture} = 1- (0.97)^3\\P_{mixture} = 0.087

You might be interested in
The cells of a mature pea plant have 10 chromosomes. How many chromosomes does a nucleus in the pea endosperm contain
Irina-Kira [14]

Answer:

15 chromosomes

Explanation:

The endosperm is formed through double fertilization where one male gamete nucleus with polar nuclei to form a triploid nucleus called the primary endosperm. The endosperm therefore will contain 15 chromosomes since the polar nuclei is diploid and the male gamete is haploid forming a triploid nucleus.

4 0
3 years ago
Compare the sciencetific method and the sciencetific process
vichka [17]

Answer:

Exploration and Discovery, Testing Ideas, Community Analysis and Feedback, and Benefits and Outcomes are the four phases that make up the Scientific Process. The Scientific Process, on the other hand, is a method for evaluating ideas that follows a straight path.

6 0
2 years ago
Can somebody please help me answer this problem it’s totally hard for me!
NemiM [27]

The integumentary system is the skin. Skin protects the inner organs from Bactria. Essentially the skin is a wall protecting against the outside world. It doesn't really release anything but is just there for protection.

Hope this helped!

5 0
3 years ago
Approximately how many species of Arthropods have been discovered on Earth?
trasher [3.6K]

Answer:

Over 800,000

<em>Arthropods are found in all parts of the world in a wide variety of environments, from the deep sea to the frozen arctic regions. Over 800,000 species of arthropods have been identified, but scientists estimate that there may be tens of millions of species in this phylum, many of them yet to be discovered!</em>

Explanation:

correct me if im wrong

8 0
2 years ago
How does the mass of an object affect its a its acceleration during free fall
kirill115 [55]
Normally it is seen that objects with more mass accelerates during their free fall than objects having smaller mass. The frictional force of air also known as the drag force get negated by the massive object and so the object gets acceleration during the free fall. If the mass of the object is small, then the frictional force or the drag will slow the object during free fall. In case of vaccum the mass of the object does not matter as there is no drag or frictional force working against it. The objects with greater  or smaller mass will then free fall with the same speed in the vaccum.
5 0
3 years ago
Other questions:
  • An age-related change in the nervous system that can adversely affect nutritional status is
    10·1 answer
  • Select ALL the correct answers.
    8·1 answer
  • 1 The main difference between a prokaryote and a eukaryote is:
    5·1 answer
  • A defect in the absorption of certain nutrients in the small intestine has been linked to an abnormally-delayed initiation of di
    5·1 answer
  • A group of tissues that work together to perform specific activities for an organism
    7·2 answers
  • How does water rise in tall trees
    8·2 answers
  • Receipt of extracellular signals can change cell behavior quickly (e.g., in seconds or less) or much more slowly (e.g., in hours
    7·1 answer
  • Which of the following is an important step in the formation of a fossil​
    10·1 answer
  • 4
    12·2 answers
  • What echinderm has a stomach outside its mouth.
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!