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
melomori [17]
3 years ago
6

The following table shows the probability distribution for the prize amounts that will be awarded at a school raffle. Prize $1 $

5 $10 $20 $50 Probability 0.60 0.30 0.05 0.04 0.01 Let the random variable P represent a randomly selected prize amount. What is the expected value of P ? $1.00 A $3.90 B $4.00 C $10.00 D $17.20
Mathematics
1 answer:
Goryan [66]3 years ago
4 0

Answer:

$3.90

Step-by-step explanation:

The expected value is the sum of each outcome multiplied by its probability.

E(P) = (1)(0.60) + (5)(0.30) + (10)(0.05) + (20)(0.04) + (50)(0.01)

E(P) = 3.9

You might be interested in
Elsie pays $8.99 for a one-pound canister of Georgia pecans. Write and solve a proportion to determine the cost of 4
ch4aika [34]

Answer:

$ 35.96

Step-by-step explanation:

Let x be the cost ( in dollars ) of 4 ounces of the pecans,

So, the ratio of the cost and ounces needed = \frac{x}{4}

Also, the cost of 1 ounces of pecans is $ 8.99,

Thus, the ratio of the cost and ounces needed = \frac{8.99}{1}

Hence, we can write,

\frac{x}{4}=\frac{8.99}{1}

Which is the required proportion,

By cross multiplication,

x = 4 × 8.99 = 35.96

Therefore, $ 35.96 is the cost of 4 ounces of the pecans.

6 0
3 years ago
Read 2 more answers
Solve the system of equations using the substitution method.
sasho [114]
4x+5(3x+9)=7
4x+15x+45=7
19x=7-45
19x = -38
\frac{19x}{19}  =  \frac{ - 38}{19}
x= -2

y=3(-2)+9
y=-6+9
y= 3
6 0
3 years ago
DUE TODAY!!! PLEASE HELP!!! Question 5 Multiple Choice Worth 4 points)
steposvetlana [31]

Answer:

-6

Step-by-step explanation:

-\sqrt{36} =-\sqrt{ 6^{2}}  =-6

5 0
3 years ago
Given the functions y = 3x^3 + 6x and x = 2t^2 + t, find dy/dt
maw [93]
The answer is the option A.

dy        dy         dx
---- = ------- .   -------
dt         dx         dt

dy
---- = 9x^2 + 6
dx

dx
---- = 4t + 1
dt

=> dy / dt = (9x^2 + 6) (4t + 1)
3 0
4 years ago
Simplify:<br>3х + 5y-x+ 2y <br>&amp;<br>3g + 5h +4g - 2h​
vladimir1956 [14]

♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️

3x + 5y - x + 2y =

3x - x + 5y + 2y =

(3 - 1)x + (5 + 2)y =

2x + 7y

_________________________________

3g + 5h + 4g - 2h =

3g + 4g + 5h - 2h =

(3 + 4)g + (5 - 2)h =

7g +  3h

♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️

8 0
3 years ago
Other questions:
  • What value should be added to the expression to create a perfect square?
    9·1 answer
  • point f lies on eg and point m lies on en. If f, e and m are collinear, what must be true of these rays?
    12·2 answers
  • Can someone answer this question please answer it correctly if it’s corect I will mark you brainliest
    13·1 answer
  • A culinary club earns $843 from a dinner service. They sold 31 adult meals and 54 student meals. An adult meal costs $8 more tha
    9·1 answer
  • Evaluate (9^1/2) over (4^-1/2)????
    10·1 answer
  • If<br><img src="https://tex.z-dn.net/?f=v%20%3D%20%20%5Cfrac%7B1%7D%7B%203%7D%20%5Cpi%5E%7B2%7D%20h" id="TexFormula1" title="v =
    15·1 answer
  • Identify the function in which y varies directly with x.
    15·1 answer
  • pls help me it will make my day because, this is due tomorrow and I don't want to fail. no one helps me ❤️
    7·2 answers
  • What is true slope of the line whose equation is y-4=5/2(x-2
    6·1 answer
  • Solve for the value of x:-<br> <img src="https://tex.z-dn.net/?f=4x-5%20%3D%203" id="TexFormula1" title="4x-5 = 3" alt="4x-5 = 3
    8·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!