Juliet is being tested for a contagious disease. the test is 99% accurate and in actuality 0.1% of the population has the disease. juliet still thinks she has the disease even though she tested negative. is she worrying too much? explain. a she is worrying too much as the test is 99% accurate. b she should be worried as there is a 9% probability that she is sick. c she should be worried as there is still a 1% chance she has the disease. d she is worrying too much as the probability that she is sick given she tested negative is 0.0001 correct answer is d

D

Step-by-step explanation:

You are looking for a conditional probability. P(has the disease given that you tested negative). This probability is  

1

9891

= 0.0001. Which means that the likelihood she has the disease is very small. Therefore, She is worrying too much as the probability that she is sick given she tested negative is 0.0001

answer:

payment just for service  

→

$

87.12

payment for service including tax

→

$

94.09

explanation:

service only with 20% tip  

→

$

72.6

(

1

+

20

100

)

=

$

87.12

in the opening of the question the word 'service' is associated only with the pretax value.

the closing part of the question asks: how much did she pay for the  

service

−−−−−−  

so technically the answer is  

→

$

72.6

(

1

+

20

100

)

=

$

87.12

however, the intention of the question provider may have been that your answer is to be  

$

87.12

(

1

+

8

100

)

=

$

94.09

to 2 decimal places.

'

payment just for service  

→

$

87.12

payment for service including tax

→

$

94.09

tony b

mar 21, 2017

answer:

trying to explain it another way

explanation:

service charge  

.

→

$

72.60

20% tip  

20

100

×

$

72.60

=

$

14.52

−−−−−−  

←

add

$

87.12

tax  

8

100

×

$

87.12

=

$

6.97

−−−−−  

←

add

$

94.09

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addition

step-by-step explanation: