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
erica [24]
3 years ago
14

A screening test for a disease shows a positive result in 91% of all cases when the disease is actually present and in 7% of all

cases when it is not. Assume that the prevalence of the disease is 1 in 650. If the test is administered to a randomly chosen individual, what is the probability that the result is positive
Mathematics
1 answer:
Jobisdone [24]3 years ago
4 0

Answer:

0.0713 = 7.13% probability that the result is positive.

Step-by-step explanation:

Probability of a positive test:

91% of 1/650(has the disease).

7% of 1 - 1/650 = 649/650(does not have the disease). So

p = 0.91\frac{1}{650} + 0.07\frac{649}{650} = \frac{0.91 + 0.07*649}{650} = 0.0713

0.0713 = 7.13% probability that the result is positive.

You might be interested in
Lenny Lendee purchased a snowblower for $199.95. He paid 25% down and agreed to pay $14.99 for 12 months.
Ganezh [65]
$199.95 x 25% = $199.95 x .25 = $49.9875 ~ $49.99
$199.95 - 49.99 = $149.96 (actual balance) If Lenny pay $14.99 for 12 months the total payment would be: $14.99 x 12 =$179.88
Lenny would have paid an additional amount of $29.92 ($179.88 - 149.96) after making the final payment.

I hope this helps since you did not mention what you were calculating, so I include everything that can be done to this problem.
8 0
3 years ago
Read 2 more answers
A shape is shown on the graph: A coordinate plane is shown. Triangle ABC has vertices 3 comma 0, 3 comma negative 3, and 1 comma
soldi70 [24.7K]
What are the given answers?

6 0
4 years ago
3x + 2<br> Output (y)<br> Input (x)<br> 0 <br> 2<br> 4 but for x
seropon [69]

Answer:

so if x = 0, x = 2, and x = 4

3(0) + 2 = 0 + 2 = 2, so when x = 0, y = 2

3(2) + 2 = 6 + 2 = 8, so when x = 2, y = 8

3(4) + 2 = 12 + 2 = 14, so when x = 4, y = 14

6 0
3 years ago
Help plz I was in the Hospital and missed an entire lesson
Zanzabum
I hope u feeling better but the answer is
3 0
3 years ago
At the embryonic stage, the zygote becomes the embryo. T or F
ehidna [41]

Answer:

TRUE. At the embryonic stage, the zygote becomes the embryo.

8 0
4 years ago
Read 2 more answers
Other questions:
  • The perimeter of a square garden is 52 feet. what is the length of each side?
    6·1 answer
  • What is angle B.........
    13·2 answers
  • Answer the following questions CORRECTLY I will know if this is wrong. I WILL REPORT ANY INCORRECT ANSWERS!
    6·2 answers
  • PLZ HELP ASAP
    5·1 answer
  • If two sides of a triangle are 5 and 12 inches long, what's the range of possible lengths for the third side?
    9·1 answer
  • The speed of a toy car over time can be represented by a parabola with minimum speed 2 m/s after 3 seconds. After 5 seconds, the
    9·2 answers
  • PLEASE HELP ITS DUE IN 15 MINSS!!!!!
    11·2 answers
  • Total cost and interest for a loan
    9·1 answer
  • 60 divided by 343...............................................
    8·1 answer
  • Questions:
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!