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
dedylja [7]
3 years ago
9

Suppose that--in any given time period--a certain stock is equally likely to go up 1 unit or down 1 unit, and that the outcomes

of different periods are independent. Let X be the amount the stock goes up (either 1 or -1) in the first period, and let Y be the accumulative amount it goes up in the first three periods. Find the correlation between X and Y.
Mathematics
1 answer:
Leviafan [203]3 years ago
6 0

Answer:

x =45 and y = 23

Step-by-step explanation:

You might be interested in
How is 0.025¯¯¯¯ written as a fraction in simplest form?
LUCKY_DIMON [66]

I am not sure if you wrote a repeating decimal with the line next to the 0.025 so comment if you need it. If it wasn't repeating it would be simply 1/40 if there is no repeating and you only want 0.025 is a fraction in simplest form.

8 0
4 years ago
How to slove for extraneous solutions
Snezhnost [94]
The answer is 23 
 HOPED THIS HELPED :)
5 0
3 years ago
Does the system have one solution, no solution, or infinitely many? Use your substitution to justify your answer
Taya2010 [7]

Answer: It has one solution. The solution is (x,y) = (-4,-3)

Add up the equations doing so straight down

x + -x = 0x = 0 so the x terms go away

2y + 2y = 4y

-10 + (-2) = -12

We end up with 4y = -12 so y = -3 after you divide both sides by 4. Use this y value to find the value of x

x+2y = -10

x + 2(-3) = -10

x - 6 = -10

x = -10+6

x = -4

The single solution is (x,y) = (-4,-3)

As a check, plug this solution into each equation to see if you get a true statement or not. Let's do so with the first equation

x+2y = -10

-4 + 2(-3) = -10

-4 - 6 = -10

-10 = -10 .... true

and then the second equation

-x+2y = -2

-(-4) + 2(-3) = -2

4 - 6 = -2

-2 = -2 .... true

both equations are true, so the solution is confirmed

4 0
3 years ago
Factorise fully<br>7g - 56​
Kobotan [32]

Answer:

7 (g-8)

Step-by-step explanation:

this is your answer

4 0
3 years ago
Help meeeeeeeeeeeeeeeeeee <br><br> &gt;_
nignag [31]

Answer:

good news, the second one is relatively easy because it can be factored to (2x+1)(2x-3) which means that number two has solutions of -1/2 and 3/2

but for number one you have to either use the quadratic equation cause I've tried using synthetic division or just use the second equation to derive the first solutions so I tried move the graph up by two units and found that the intercepts are approximately (1+-√2)/2 or 1/2+-1/√2 for 4x^2-4x-1

7 0
3 years ago
Other questions:
  • In a lottery, 1000 tickets are sold at .25 each. there are 3 cash prizes: 100, 50, and 30. alice buys 5 tickets. what would be a
    9·1 answer
  • Find the 5th term of 8/9 ,-4/3 ,2​
    7·1 answer
  • If a phone card is usef to maje s long distance phone call yiu sre chsrged 0.75 per phone call plus an additional 0.20 per minut
    5·2 answers
  • Mary and her brother John collect foreign coins. Mary has twice the number of coins that John has. Together they have 105 foreig
    5·2 answers
  • The cost of 2 bananas at x dollars each and 5 apples at 4 dollars each is 28 dollars
    6·1 answer
  • 2.5% of what number is 14?
    8·1 answer
  • Someone please help me with number 4
    12·1 answer
  • Someone pls help me with this question!!!!!!!
    14·1 answer
  • If a= 1/3 5a minus 2/3 please help me
    13·1 answer
  • What is the value of the expression below when x=7? 5x-3
    5·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!