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
Sveta_85 [38]
3 years ago
13

I plan to have a food sale tomorrow on campus. If tomorrow is a sunny day, I plan to sale all of food and I can get an income of

$200. If tomorrow is a heavy raining day, then I cannot sale any food, so I do not have any income. Assume I need spend $50 to prepare the food and the chance of raining tomorrow is 0.01. find my expected value of this event.
Mathematics
1 answer:
d1i1m1o1n [39]3 years ago
5 0

Answer:

Expected value for the event = $148

Step-by-step explanation:

Expected value (EV) = Σ(Px*x)

Pr(rainy day) = 0.01

Px for rainy day = 0.01

Pr (sunny day) = 1-0.01 = 0.99

Px for sunny day = 0.99

If it's sunny, income = $200

Cost of preparation = $50

x for sunny day = 200-50 = 150

If it's rainy, income = $0

Cost of preparation = $50

x for sunny day = 0-50 = -50

EV =Σ(Px * x)

EV = (0.99*150)+(0.01*-50)

EV = 148.5+(-0.5) = 148.5-0.5

Expected value for the event = $148

You might be interested in
If sin ⁡x=7/25, and 0 < x < π/2, what is cos⁡(x−3π/2)?
Likurg_2 [28]

Answer:

Cos(x-\frac{3\pi}{2})=-\frac{7}{25}

Step-by-step explanation:

Remember that cos(x-y)=cos(x)cos(y)+sin(x)sin(y)

Then,

cos(x-\frac{3\pi}{2})=cos(x)cos(\frac{3\pi}{2})+sin(x)sin(\frac{3\pi}{2})\\

But cos(\frac{3\pi}{2})=0 and sin(x)=\frac{7}{25}

Then

cos(x-\frac{3\pi}{2})=cos(x)*0+\frac{7}{25}*sin(\frac{3\pi}{2})\\=\frac{7}{25}*(-1)=\frac{-7}{25}

5 0
3 years ago
Help please
mrs_skeptik [129]
It will be 1.104 so i think it will be that ikd
6 0
3 years ago
Help&amp;EXPLAIN <br> •••••••••••••••••••
TiliK225 [7]

Answer:

68cm^2

Step-by-step explanation:

Well there's not much to explain - the problem statement does it for us.

The surface area is equal to the sum of areas of the walls. There's 2 l*w walls, 2 l*h walls and 2 h*w walls.

SA = 2*l*h + 2*l*w + 2*h*w

SA = 2*4cm*6cm + 2*4cm*1cm + 2*6cm*1cm = 48cm^2 + 8cm^2 + 12cm^2 = 68cm^2

5 0
3 years ago
Whats the absoulte value of -5
otez555 [7]

The absolute value of -5 would be 5

Hope this helps, and have a nice day

7 0
3 years ago
To make chocolate ice cream,you need about 3/8 pound of chocolate.How many pounds of chocolate will you need to make 4 batches o
Gre4nikov [31]
1 batch ice cream = 3/8 lb chocolate

4 batches ice cream=
=4(3/8)
=(4*3)/8
=12/8
=1 1/2 pounds of chocolate needed to make 4 batches of ice cream

Hope this helps! :)
8 0
3 years ago
Other questions:
  • Write the sentence as an inequality.<br><br> The sum of twice a number n and 8 is less than 25
    5·1 answer
  • The graph of the equation below is a circle. What is the length of the radius of the circle? (x - 4)^2 + (y + 12)^2 = 17^2
    9·2 answers
  • Chan receives a bonus from his job. He pays 30% taxes, pays 30% charity and 25% debt. Has $600 remaining from his bonus. What wa
    15·1 answer
  • -6x -(3x)= what's the answer to this please help me .
    11·2 answers
  • John took all his money from his savings account. He spent $52 on a radio and 1/2 of what was left on presents for his friends,
    10·1 answer
  • I NEED HELP PLZ ASAP​
    13·2 answers
  • Twice the difference of a number and 4 is equal to three times the sum of the number and 6. Find the number.
    5·1 answer
  • I need help on this and more so can sb help me ?..
    10·1 answer
  • Help please help me i need to pass this test help me
    9·1 answer
  • The table shows the number of yards of ribbon needed to make different numbers of bows.
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!