A marketing firm tracks data on grocery store visits. In one study, it finds the probability that a shopper buys bread during a visit to the grocery store is 0.60,and the a shopper buys cheese is 0.25 Event A= A shopper buy bread.
Event B= A shopper buys cheese.
A and B are independent events if_.

B. The probability of buying bread and cheese is 0.15

Step-by-step explanation:

Data

If two events A and B are independent, then the probability that A and B occur is:

P(A∩B) = P(A)*P(B)

Replacing with data:

P(A∩B) = 0.6*0.25 = 0.15

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

may i see the picture? it would a lot, xox