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
NARA [144]
3 years ago
7

Between 1896—when the Dow Jones index was created— and 2012, the index rose in 65% of the years. Based on this information, and

assuming a binomial distribution, what do you think is the probability that the stock market will rise a) next year? b) the year after next? c) in four of the next five years? d) in none of the next five years? e) For this situation (modeling Dow Jones index), what assumption of the binomial distribution might not be valid? Are the years independent?

Mathematics
1 answer:
forsale [732]3 years ago
4 0

Answer:

a) P(x) = 0.67

b)  P(y) = 0.67

c) P(x=4) = 0.3325

d) P( x = 0 ) = 0.0039

e) The fact that the rise and fall of the stock market relies on market sentiments violates independence used in Binomial distribution and the years are independent

Step-by-step explanation:

A) The probability that the stock market will rise next year = P(x) = 0.67

assuming next year to be X

B) Probability that the stock market will rise the year after next year

= P(y) = 0.67 and this is because the probability is independent of that of the previous years

C) Probability that the stock market will rise in four of the next five years

= P(x=4) = 0.3325

D) probability that the stock market will rise in none of the next five years

= P( x = 0 ) = 0.0039

E) The fact that the rise and fall of the stock market relies on market sentiments violates independence used in Binomial distribution and the years are independent

You might be interested in
Use the definition of continuity and the properties of limit to show that the function f(x)=x sqrtx/ (x-6)^2 is continuous at x=
jasenka [17]

Answer:

The function \\ f(x) = \frac{x*\sqrt{x}}{(x-6)^{2}} is continuous at x = 36.

Step-by-step explanation:

We need to follow the following steps:

The function is:

\\ f(x) = \frac{x*\sqrt{x}}{(x-6)^{2}}

The function is continuous at point x=36 if:

  1. The function \\ f(x) exists at x=36.
  2. The limit on both sides of 36 exists.
  3. The value of the function at x=36 is the same as the value of the limit of the function at x = 36.

Therefore:

The value of the function at x = 36 is:

\\ f(36) = \frac{36*\sqrt{36}}{(36-6)^{2}}

\\ f(36) = \frac{36*6}{900} = \frac{6}{25}

The limit of the \\ f(x) is the same at both sides of x=36, that is, the evaluation of the limit for values coming below x = 36, or 33, 34, 35.5, 35.9, 35.99999 is the same that the limit for values coming above x = 36, or 38, 37, 36.5, 36.1, 36.01, 36.001, 36.0001, etc.

For this case:

\\ lim_{x \to 36} f(x) = \frac{x*\sqrt{x}}{(x-6)^{2}}

\\ \lim_{x \to 36} f(x) = \frac{6}{25}

Since

\\ f(36) = \frac{6}{25}

And

\\ \lim_{x \to 36} f(x) = \frac{6}{25}

Then, the function \\ f(x) = \frac{x*\sqrt{x}}{(x-6)^{2}} is continuous at x = 36.

8 0
3 years ago
Find the quotient of 4/5 and 9/10 help now pleaseeeee
RUDIKE [14]

Answer:

4/5 divided by 9/10

4/5 times 10/9

=8/9

Step-by-step explanation:

hope this help you good luck

7 0
2 years ago
Do most people your age understand finance?
stealth61 [152]

Answer:

Age 1-NO

Age 2-NO

Age 3-NO

Age 4-NO

Age 5-NO

Age 6-NO

Age 7-NO

Age 8-NO

Age 9-NO

Age 10-NO

Age 11-maybe probably not

Age 12-maybe probably not

Age 13-maybe probably not

Age 14-kinda

Age 15-kinda

Age 16-starting to know more

Age 17-starting to know more

Age 18-pretty sure

Age 19-pretty sure

Age 20-yes

8 0
3 years ago
Select the correct answer.
BaLLatris [955]

Answer:

80

Step-by-step explanation:

in the figure above, angle 100 degrees is corresponding to the angle co - interior to angle x

that is

if we put an angle that is at the upper left of x, we can call that y which is corresponding to 100 degrees

since y is corresponding to 100 degrees, it automatically becomes the same as 100 degrees

therefore y=100

now, from the first line above, we know that x and y are co-interior which means that they both add up to 180 degrees

that is

x+y=180

we know that y = 100

therefore,

x+100=180

collect like terms and

x = 180-100

therefore,

x= 80

thank you!!

7 0
3 years ago
If h(x)=x-9, find h(13)
Helen [10]

If you plug in h, the answer would be 13-9 which is 4.

6 0
3 years ago
Read 2 more answers
Other questions:
  • Solve for y. I REALLY NEED HELP ON THIS!! 2(3y+6x)=2(5y-2x)
    7·1 answer
  • Why did congress provide cash grants to states during 1930s
    11·1 answer
  • Determine whether or not F is a conservative vector field. If it is, find a function f such that F = ∇f. (If the vector field is
    13·1 answer
  • The area of the base of a cylinder is 45 square inches and it's height is 10 inches. A cone has the same are for its base and th
    15·1 answer
  • Most americans use 7 trees a year in products that are made from trees? How old is a person who has used 65 tree
    11·1 answer
  • To the nearest tenth, what is the value of x?<br><br> - 35.3<br><br> - 39.2<br><br> - 54.7
    13·1 answer
  • HELP ASAP
    12·2 answers
  • A farmer had some chickens and some cows. She counted 40 total heads and 126 total legs. How many cows did she have?
    9·1 answer
  • On the graph of f(x)=sinx and the interval [0,2π), for what value of x does f(x) achieve a minimum?
    10·1 answer
  • What is 1 dollor 2 dimes 13 pennies PLUS 2 dollaars and 3 quqrters?
    10·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!