An analyst has developed the following probability distribution for the rate of return for a common stock.
Scenario Probability Rate of Return
10 0.34 -19%
20 0.48 8%
30 0.18 26%
a. Calculate the expected rate of return. Round your answer to 2 decimal places.
b. Calculate the variance and the standard deviation of this probability distribution. Use the percentage values for your calculations (for example 10% not 0.10). Round intermediate calculations to 4 decimal places.
Answers
Answer:
a) 2.06
b) variance = 270.90 , std = 275.14
Step-by-step explanation:
a) Determine Expected rate of return
attached below is the calculated table for the solution provided
∴ Expected rate of return = ∑ Xp(x) = -6.46 + 3.84 + 4.68 = 2.06
b) Determine the variance and standard deviation
Variance ( Vx ) = E(x)^2 - [ Expected rate of return ]^2
= 275.14 - ( 2.06 )^2 ≈ 270.90
standard deviation = √ variance = √270.90 = 16.459
note : E(x)^2 = ∑ x^2 p(x) = 275.14
Related Questions
The absolute value of | – 71 – 19 – 18% is -16.
TRUE
FALSE
Answers
Answer: False i think
Step-by-step explanation:
as an estimation we are told 5 miles is 8km convert 60km to miles
Answers
Answer:
60km is 37 Miles
it is a decimal- 37.2 Miles
Step-by-step explanation:
divide 60 by 1.609
Answer: using this we can say that 60km is 37.5 miles
Step-by-step explanation:
first you divide 60 and 8 which gives us 7.5
using this we multiply 7.5*5=37.5
Name the triangle described
Answers
Answer:
acute angle
Step-by-step explanation:
different angles will produce different "opposite side" lenghts, so the angle has 3 distinct angles and therefore 3 distinct sides, different sides means is an Scalene.
Now, one of the angles is 90° or namely a right-angle, that makes it a Right Scalene Triangle.
Chris wants to order DVDS over the internet. Each DVD costs $12.99 and shipping order costs $9.99. If he can spend no more than $100 how many DVDs can he buy?
Answers
Answer:
4
Step-by-step explanation:
I think its 4 because the max DVD's he could have bought if shipping was free was 7 but since shipping is not free,he has to equal the amount so 12.99+9.99= 22.98 and the maximum multiplication by 22.98 with the maximum number as 100 would be 91.92, thats my answer
(giving brainlelist if answered correctly!) which of the following inequalities is -4
?
Answers
Answer
A, B, E.
Hope you could get an idea from here.
Doubt clarification - use comment section.
7. at + b = ar – c
Solve for a
Answers
okkkkkkkkkkkkkkkkkkkkkkkkkkk
write an inequality with a solution that matches the graph at least two steps should be needed to solve your inequality. Just 62 and 64 please
Answers
Answer:
x >= -2
-2 < x < 1
11,16,21,...
Find the 43rd term.
Find the 43rd term.
Answers
Answer:
You add 5 each time so we just need to multiple 5 by 40 since we alredy have the first three terms.
40*5=200
21+200=221
Hope This Helps!!!
Which of the following rules represents the function shown in the table?
f(x)=n+3
f(x)=3n
f(x)=1/3n
Answers
Answer:
f(x)=3n
Step-by-step explanation:
We can see it goes x=2 to y=6 this has been times by 3, x=-1 to y=-3 also times by 3 and x=0 y=0 0x3=0
consider equation of circle x2-2x+y2-4y-4=0,if line 2x-y+a=0 is its diameter then find value of a
Answers
Answer:
Step-by-step explanation:
x² - 2x + y² - 4y - 4 = 0
x² - 2x + y² - 4y = 4
complete the squares
(x² - 2x + x₀) + (y² - 4y + y₀) = 4
the unknown number will be the square of half of the x¹ coefficient
(x² - 2x + 1) + (y² - 4y + 4) = 4 + 1 + 4
(x - 1)² + (y - 2)² = 9
This tells us that the circle is centered on (1, 2)
Which is also a point on the diameter
2x - y + a = 0
a = y - 2x
a = 2 - 2(1)
a = 0
Plz help me NOW I will mark u brainliest
Answers
[tex]m\% \: \: of \: \: p\% \: \: of \: \: n \\ = \frac{m}{100} \times \frac{p}{100} \times n \\ = \frac{m \times p \times n}{100 \times 100} \\ = \frac{mnp}{10000} [/tex]
Hope you could get an idea from here.
Doubt clarification - use comment section.
simplify.
|−6 + (−3)| (−3) + 8 ÷ 2
Answers
6
3
8
6
3
8
to an improper fraction.
Tap for more steps...
51
8
−
2
1
4
51
8
-
2
1
4
Convert
2
1
4
2
1
4
to an improper fraction.
Tap for more steps...
51
8
−
9
4
51
8
-
9
4
To write
−
9
4
-
9
4
as a fraction with a common denominator, multiply by
2
2
2
2
.
51
8
−
9
4
⋅
2
2
51
8
-
9
4
⋅
2
2
Write each expression with a common denominator of
8
8
, by multiplying each by an appropriate factor of
1
1
.
Tap for more steps...
51
8
−
9
⋅
2
8
51
8
-
9
⋅
2
8
Combine the numerators over the common denominator.
51
−
9
⋅
2
8
51
-
9
⋅
2
8
Simplify the numerator.
Tap for more steps...
33
8
33
8
The result can be shown in multiple forms.
Exact Form:
33
8
33
8
Decimal Form:
4.125
4.125
Mixed Number Form:
4
1
8
If the expression inside the absolute value bars which is -6 .Simplifying the expression |−6 + (−3)| (−3) + 8 ÷ 2 is: 9.
What is the expression?Let simplify the given expression step by step:
|-6 + (-3)| = |-9| = 9
First calculate the expression inside the absolute value bars which is -6 + (-3) = -9. Then take the absolute value of -9, which is 9.
(-3) + 8 ÷ 2 = (-3) + 4 = 1
We follow the order of operations (PEMDAS/BODMAS).
First perform the division:
8 ÷ 2 = 4
Add -3 to 4 which gives us 1.
Simplified expression :
9 * 1 = 9
Therefore the expression is 9.
Learn more about expression here:https://brainly.com/question/1859113
#SPJ3
Help fast !!! I have like 5 minutes left
Answers
Answer:
y-intercept = (0,3)
Step-by-step explanation:
Describe the location from the origin of each point in problem 5
Answers
If .60 = N could you write the expression .60N
Answers
Answer:
N+60
Step-by-step explanation:
HELP!!!! If you help me with this you’ll be my favorite person ever
Answers
Solve. x 2 = 7
pls help!!
Answers
Answer:
x = 14
Step-by-step explanation:
1) Multiply both sides by 2.
x = 7 * 2
2) Simplify 7 * 2 to 14.
x = 14
Answer:
D.
Step-by-step explanation:
when using diversions in fractions to whole numbers you will always multiply the denominator by the whole number. So 2 x 7 equals 14. :))
Which expression has a coefficient of 4?
A
(2^x)+4
B
4(2^x)+1
C
2(x^4)+1
D
2(4^x)+1
Answers
Answer:
Option D
Step-by-step explanation:
[tex]\\ \sf\longmapsto 2(4^x)[/tex]
You have to first find 4^x and then multiply it with two .Not like this
[tex]\\ \sf\longmapsto 2(4^x)=8^x [/tex](×)
Hence the variable has coefficient 4 as 4^x is multiplied.
7x+27x+2 from -5x^2-2x
ADDING AND SUBTRACTING POLYNOMIALS
Answers
Answer:
7x+27x=34x
34x+2-(-5×^2)-2x
34x+2+5x^2-2x
34x+2x=36x
36x+2+5x^2
8. There are 18 trumpets in a music room. These trumpets will be placed in 3 equal rows. Which number sentence can be used to find the number of trumpets in each row?
Answers
Answer:
18÷3=6
Step-by-step explanation:
18 trumpets have to be DIVIDED into 3 rows so you would divide 18 by three to get 6 trumpets in each row.
Please help!!!!
check for understanding:
Answers
Answer:i thinks is 115.9 maybe im not sure because its in my HW
Step-by-step explanation:
Answer:
x=7.245
Step-by-step explanation:
pythagoras theorem says:
c=√a^2+b^2
so:
c=a2+b2=3.22+6.52≈7.245
Look at the graph below. What is the x-intercept?
Answers
Answer:
-3
Step-by-step explanation:
Whatever number the line passes on the x-intercept is the answer:)
Compute the area of a circle with a diameter of 18 inches.
Answers
Answer:
254.34
Step-by-step explanation:
Diameter: 2×radius
Radius:Diameter÷2
Area: pi×radius²
18/2=9
Radius=9
pi=3.14
3.14×9²=254.34
The area is 254.34
The weights of adult polar bears, the largest bear species in North America, have a mean of 950 pounds and standard
deviation of 84 pounds. What is the weight of a polar bear that has a z-score for weight of -1.50?
Find the Z-table here.
O 126 pounds
O 824 pounds
948.5 pounds
O 951.5 pounds
O 1,076 pounds
Answers
The weight of 824 pounds of a polar bear has a z-score of -1.50.
The z score is used to determine by how many standard deviations the raw score is above or below the mean. The z score is given by:
[tex]z=\frac{x-\mu}{\sigma} \\\\where\ x=raw\ score,\mu=mean,\sigma=standard\ deviation[/tex]
Given that μ = 950, σ = 84
For z = -1.50:
[tex]-1.50=\frac{x-950}{84}\\\\x-950=-126\\\\x=824[/tex]
The weight of 824 pounds of a polar bear has a z-score of -1.50.
Find out more on z score at: https://brainly.com/question/25638875
Need help a lot stuck
Answers
The answer is A
ok done. Thank to me :>
please help me out y'all
Answers
first graph= negative association
second graph = no association
third graph = positive association
Lindsay wrote checks from her checking account for $20 and $35. Finally, she deposited $63 into her account. Which number describes the change in the balance of her account?
Answers
Answer:
20 and 35 because it says that she wrote a check.
Step-by-step explanation:
Which of the following rational functions is graphed below?
Answers
Answer:
Option C
Step-by-step explanation:
According to the graph, there are vertical asymptotes at [tex]x=-3[/tex] and [tex]x=7[/tex]. Therefore, C is correct because -3+3=0 and 7-7=0.
Which of the following numbers is proportional to 84/108?
1. 86/110
2.98/126
3.64/72
4.91/104
Answers
Proportional numbers are numbers with the same equivalent ratio
98/126 is proportional to 84/108
The number is given as:
[tex]Number = \frac{84}{108}[/tex]
Reduce fraction to the lowest term
[tex]Number = \frac{7}{9}[/tex]
Reduce 86/110 to the lowest term
[tex]Number = \frac{86}{110}[/tex]
Divide by 2/2
[tex]Number = \frac{43}{55}[/tex]
43/55 is not equivalent to 7/9
Reduce 98/126 to the lowest term
[tex]Number = \frac{98}{126}[/tex]
Divide by 14/14
[tex]Number = \frac{7}{9}[/tex]
7/9 is equivalent to 7/9.
Hence, 98/126 is proportional to 84/108
Read more about proportional numbers at:
https://brainly.com/question/1781657
Not sure how this works as a fraction to place the dot in the right place
Answers
Answer:
You would place 7/6 one tick to the right of 1, and -2 5/6 one tick to the right of -3
Step-by-step explanation:
