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
Lerok [7]
2 years ago
7

Suppose a certain drug test is 85% accurate, meaning that if a person is a user, the result is positive 85% of the time, and if

she or he isn't a user, it's negative 85% of the time. Assume that 5% of all people are drug users.
What is the sensitivity of this test?
Mathematics
1 answer:
kakasveta [241]2 years ago
8 0

Answer:

29.411 %  of the result is true.

Step-by-step explanation:

This test's sensitivity is low.

Suppose we have 5 drug users and 85% of the test is accurate meaning that 5* 0.85= 4.25 people are drug users which is true.

But if work for the non users than 5% people being drug users means 95 people are non drug users out of the hundred.

And 85 % accuracy would give  95* 0.85= 80.75 which is very high.

And out of the 80.75 * 15%= 12.11 only 12 are positive .

The results give us  5 out of 17  true possibilities

or 5/17 *100= 29.411 %  of the result is true.

You might be interested in
The height of a boy is 1.46 meters. If there are approximately 3.28 feet in one meter, what is the height of the boy in inches?
grigory [225]
The boy is 4.79 ft tall.
Use the conversion formula of,
d(ft) = d(m) / 0.3048

8 0
2 years ago
X-20 = y+20<br>2Y - 44 = X + 22<br>​
nordsb [41]

X-20 = Y+20........    X-Y = 20+20........

X-Y = 40

AND

2Y-44=X+22.............   Y-X= 44+22

Y-X=66

NOW, LET'S FIND X AND Y FROM THESE TWO EQUATIONS....

X-Y =40

Y-X= 66

IF WE COLLECT .......     2Y = 106 AND Y = 53

THEN, USE Y IN ANY EQUATIONS FOR FINDING X

X-53 = 40 ..... X= 53+40 .......... X= 93

X= 93

Y=53

8 0
3 years ago
Worth LOTS OF POINTS PLZ!<br><br> Is -1/2n+ 1 1/2n+3-n equivalent to 3 ? Explain
tino4ka555 [31]
The answer is 3. -1/2 n + 1 1/2 n add the coefficients to get 1n or just n. then n-n is 0 what is left is 3.
5 0
3 years ago
What is the equation of the line that passes through the point (-1, -7) and has a<br> slope of 2?
slava [35]

Answer:

y=2x-5

Step-by-step explanation:

The slope-intercept form of an equation looks like y=mx+b. Where m is the slope and b is the y-intercept. The slope is already given to us, so m is 2.

To find b use the equation b=y_1-m*x_1. So, to find the y-intercept use b=-7-(2*-1). This equals b=-5.

So, plug in the values to get the final equation y=2x-5.

7 0
2 years ago
Read 2 more answers
How do i solve this slope of a line from a graph?​
iren2701 [21]

Answer:

Find two good points and do rise over run. or you can do the x1 y1 thing

Step-by-step explanation:

3 0
3 years ago
Other questions:
  • 2 Points
    10·1 answer
  • I need help with #18 please
    10·2 answers
  • What is the area of a rectangle that is 27 feet in length and perimeter 116
    14·1 answer
  • How many solutions does the equation 4p + 7 = 3 + 4 + 4p have?
    9·1 answer
  • Please help! Very Easy Question! Which of the following are rational numbers?
    5·1 answer
  • Background information: Wilson was a Democrat,
    14·1 answer
  • What is the answer to -(5-2)=
    10·2 answers
  • 39 out of 60 is equivalent to what decimal and percent?
    10·1 answer
  • The graph showing here is the graph of which of the following rational functions?
    7·1 answer
  • Can somebody help me please ​
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!