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
DIA [1.3K]
3 years ago
14

The credit department of Lion's Department Store in Anaheim, California, reported that 30% of their sales are cash, 30% are paid

with a credit card, and 40% with a debit card. Twenty percent of the cash purchases, 90% of the credit card purchases, and 60% of the debit card purchases are for more than $50. Ms. Tina Stevens just purchased a new dress that cost $120. What is the probability that she paid cash?
Mathematics
1 answer:
Oliga [24]3 years ago
6 0

Answer:

Hence the probability that she paid cash is  0.105

Step-by-step explanation:  

P(cash) = 0.3  

P(credit card ) = 0.3  

P(debit card ) = 0.4  

P ( more than $50 | cash ) = 0.2  

P (more than $50 | credit card ) =0.9  

P (more than $ 50 |debit card ) = 0.6  

P ( more than $50) = P ( more than $50 | cash )* P (cash) + P (more than $50 credit card ) * P(credit card ) + P (more than $ 50 |debit card )* P(debit card )  

= 0.2 * 0.3 + 0.9 * 0.3 + 0.6* 0.4  

= 0.57  

P ( more than $50) = P ( more than $50 | cash )* P (cash) / P ( more than $50)  

= 0.2* 0.3 / 0.57  

= 0.105

You might be interested in
The data in the table represent the training times (in seconds) for Adam. Adam 103 105 104 106 100 98 92 91 97 101 Points Concep
Julli [10]

Answer:

A. Miguel has the greatest spread.

The range of the two persons can be determined by:

Adam's range = 106 -91 = 15

Miguel's range = 105 -86 = 19

B. Considering the middle 50% of the training time, the person with the least spread is Adam.

Adam - 103 105 104 106 100

Miguel - 88 86 89 93 105

Adam's 50% range = 106 - 100 = 6

Miguel's 50% range = 105 - 86 = 19

Adam has the least spread

C. Miguel is inconsistent with the time set for training compared to that of Adam.

The answers to parts 2a and 2b show that there is a wide variation in the time that Miguel spend during training, but a minimum variation in the time spent by Adam during training.

3 0
3 years ago
What do I type in the yellow boxes?
PolarNik [594]

Answer:

x=-2

Step-by-step explanation:

x= -b/2a

b=4

a=1

x=-4/2*1

x=-4/2

x=-2

8 0
2 years ago
Read 2 more answers
a gardener uses a tray of 6 conical pots to plant seeds. each conical pot has a radius of 3 centimeters and a depth of 8 centime
lubasha [3.4K]
The volume of a cone is one-third of the product of the area of the base times the height, i.e.

(1/3)π(r^2)*h = (1/3)π(3cm)^2 *(8cm) = 75.40 cm^3

Now multiply that by the number of cones: 6 * 75.40 cm^3 = 452.40 cm^3.

Then the answer is 452 cm^3
3 0
3 years ago
Read 2 more answers
F(1) = 5
MatroZZZ [7]

Answer:

a(7)=3645

Step-by-step explanation:

you have :

f(1) =a= 5

and from recursive rule: f(n) = r · f(n − 1) and f(n) = 3 · f(n − 1)

So r=3

then

a(n)=a*r^(n-1)

a(7)=5*3^(7-1)

a(7)=5*3^6=3645

<em>hope this helps</em>

<em />

7 0
2 years ago
Wynona buys some new boots that are priced $85.79. She gets successive discounts of 10% followed by 5% off on the boots. The pur
kotegsom [21]

Answer:84.5%

Step-by-step explanation:Subtract  85.79 from 10.5 that will give you 84.5.

3 0
3 years ago
Other questions:
  • What is the value of x in the equation 32(4x – 1) – 3x = 54 – (x + 2)?
    11·2 answers
  • 3) Find the area of JUST the wood portion of the frame. This is called a composite figure.
    6·1 answer
  • What is the value for y?<br><br><br><br> Enter your answer in the box.<br><br> y =
    12·2 answers
  • The Measure Of (Arc)XY is 94*. What is the measure of XYZ, The Tangent-chord Angle?
    10·2 answers
  • Work out the value of x
    14·2 answers
  • How many more dogs than cats were over 10 pounds?<br><br> 10<br><br> 30<br><br> 50<br><br> 100
    6·2 answers
  • <img src="https://tex.z-dn.net/?f=5x-%20%5Cdfrac%7B%20%5Csqrt%7B%209%20%7B%20x%20%7D%5E%7B%202%20%7D%20-6x%2B1%20%5Cphantom%7B%5
    14·1 answer
  • I NEED HELP ILL GIVE BRAINLIEST PLZ HELP
    10·2 answers
  • A teacher interested in determining the effect of a new computer program on learning to read conducted a study. One hundred stud
    7·1 answer
  • What is this asking for?
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!