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
faust18 [17]
3 years ago
9

A pizza shop sells three sizes of pizza, and they track how often each size gets ordered along with how much they profit from ea

ch size. Let X represent the shop's profit on a randomly selected pizza. Here's the probability distribution of XXX along with summary statistics:
Small Medium Large
X= Profit($) 4 8 12
P(X) 0.18 0.50 0.32
Mean μx= $8.56
Standard Deviation σx ≈ 2.77

The company is going to run a promotion where customers get $2 off any size pizza. Assume that the promotion will not change the probability that corresponds to each size. Let Y represent their profit on a randomly selected pizza with this promotion. What are the mean and standard deviation of Y?
Mathematics
1 answer:
kari74 [83]3 years ago
8 0

Answer:

μy = $6.56 ; σy = 2.77

Step-by-step explanation:

Given the data :

Mean μx= $8.56

Standard Deviation σx ≈ 2.77

Profit, Y on pizza with current promo :

Price off on pizza = $2

Y = x - 2

μx = E(x) = $8.56

μy = μ(x - 2)

μy = μx - $2

μy = $8.56 - $2

μy = $6.56

For the standard deviation of y

σx ≈ 2.77

σy = σ(x - 2)

σy = σx - 2

Constants are treated as 0 for standard deviation

σy = 2.77

You might be interested in
What is the area of the triangle?
Leona [35]

Answer:

40

Step-by-step explanation: you have to multiply 4 by 10 to get ur answer

7 0
3 years ago
Read 2 more answers
You are riding your bicycle. It takes you 9 minutes to go 2.5 miles. If you continue traveling at the same rate, how long will i
Scorpion4ik [409]
The answer to the question asked, should be 54!
I hope this helps
3 0
3 years ago
20 POINTS PLEASE HELP
Vinvika [58]

Answer:

{-9,1,11}

Step-by-step explanation:

Just place the domain values to your x value in the function.

7 0
3 years ago
Please help. Write as a single logarithm, a) log(13)+log(4) b) log(small 5)(14)-log(small 5)(2)
dsp73

Answer:

a) \log 52

b) \log_57

Step-by-step explanation:

Use logarithm properties:

\log_ab+\log_ac=\log_a(b\cdot c)\\ \\\log_ab-\log_ac=\log_a\dfrac{b}{c}

Then

a) \log 13+\log 4=\log 13\cdot 4=\log 52

b) \log_514-\log _52=\log _5\dfrac{14}{2}=\log _57

7 0
3 years ago
7 qt. of a 27% saline solution was mixed
mamaluj [8]

Answer:

24% saline

Step-by-step explanation:

Find how much saline is in both solutions:

7(0.27)

= 1.89

3(0.17)

= 0.51

Add this together:

1.89 + 0.51

= 2.4

Since there are 10 quarts in total, the concentration of the mixture can be found by dividing 2.4 by 10:

2.4/10

= 0.24

So, the concentration of the mixture is 24% saline

4 0
3 years ago
Other questions:
  • Matt is four years younger than twice his cousin Andy’s age. The sum of their ages is greater than 35. What is the youngest age
    13·1 answer
  • What is the perimeter of this composite figure? and how do you get it?<br><br>​
    5·1 answer
  • g Determine if the statement is true or false. A linear system with three equations and five variables must be consistent. True
    6·1 answer
  • Mario reduced a picture that is 10 inches long by 8 inches wide using a photocopier. The reduced picture is now 6 inches long. B
    13·1 answer
  • According to Jax's pedometer, he walked
    7·2 answers
  • Taree fourts of the 64 books were math books. determine the percent of the books that were math books.​
    11·1 answer
  • The advertised size of a pizza is the diameter of the pizza. Which is closest to the area of the crust of a 15-inch pizza?
    7·1 answer
  • Solve the equation.<br> x(4x−11)=15
    11·1 answer
  • A hardware store offers customers a coupon for `\$25` off. The regular price of a power drill is `\$125`. If a customer uses the
    15·1 answer
  • Compare the following ratios: (Use &gt;, &lt; or = sign in the place holders)
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!