A5-column table has 4 rows. the first column has entries a, b, c, total. the second column is labeled x with entries 45, 20, 25, 90. the third column is labeled y with entries 30, 10, 35, 75. the fourth column is labeled z with entries 60, 25, 50, 135. the fifth column is labeled total with entries 135, 55 110, 300.
which statement is true about whether c and y are independent events?

c and y are independent events because p(c∣y) = p(y).
c and y are independent events because p(c∣y) = p(c).
c and y are not independent events because p(c∣y) ≠ p(y).
c and y are not independent events because p(c∣y) ≠ p(c).

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

related questions

i dont know men

step-by-step explanation:

step-by-step explanation: