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VLD [36.1K]
3 years ago
8

A test to detect an infection gives a positive result 98% of the time when an infection is present. It is 97% accurate when an i

nfection is not present.
Mathematics
1 answer:
NNADVOKAT [17]3 years ago
4 0

Answer:

false negatives - 2%

false positives - 3%

Step-by-step explanation:

Here is the complete question :

A test to detect an infection gives a positive result 98% of the time when an infection is present. It is 97% accurate when an infection is not present.

% of results will be false negatives, and % of results will be false positives.

False negative means a negative result which in actuality it is positive

False negative = 100% - percent of positive result

100% - 98% = 2%

False positive result means a positive result which in actuality is negative

False positive = 100% - percent of false positive

100 - 97 = 3%

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im almost done with this hw. plz help!!! give explanation if you actually know the answer so ik u dont just want points
s344n2d4d5 [400]

Answer:

B

Step-by-step explanation:

6 0
2 years ago
Estimate the solution of the system x+y=4 2x-y=6 by sketching a graph of each linear function. Then solve the system algebraical
Juli2301 [7.4K]

Answer:

(10/3, 2/3)

Step-by-step explanation:

You may find it easier to write these two equations x+y=4 2x-y=6 in a column:

x+y=4

2x-y=6

Adding these together will eliminate y:

3x = 10.  Then x = 10/3.

Substituting 10/3 for x in the first equation results in:

10/3 + y = 4

Clear fractions by multiplying all three terms by 3:

10 + 3y = 12

Then 3y = 2, and y = 2/3.

The solution is (10/3, 2/3)

8 0
3 years ago
Robert can paint a room in 6 hours. Julio can paint a room in 8 hours.how long will it take for the two of them to paint a room
Llana [10]

Roberto paints 1/6 of a room in 1 hour.
Julio paints1/8 of a room in 1 hour.

Working together, they paint (1/6 + 1/8) = (4/24 + 3/24) = 7/24 room per hour.

The reciprocal unit rate is  24/7 hour per room = <em>3-3/7 hours</em> per room.


6 0
3 years ago
Bryan initially filled a measuring cup with 3/10 of a cup of syrup from a large jug. Then he poured 1/10 of a cup back into the
wariber [46]
2/10. 3-1/10 = 2/10.
7 0
2 years ago
The soccer team collector $800 at a carwash fundraiser they charge five dollars for small vehicles and $10 for large vehicles th
Nadusha1986 [10]
800 - 50 = 750
750 ÷ 5 =150
150 small vehicles were washed 
7 0
2 years ago
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