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
ladessa [460]
3 years ago
7

Suppose two random variables, X and Y are independent, which statement is false? a) P(X∣Y)=P(X) b) P(X∪Y)=P(X)+P(Y) c) P(X∩Y)=P(

X)⋅P(Y) d) Cov(X,Y)=0
Mathematics
1 answer:
Svetlanka [38]3 years ago
5 0

B is false, since by the inclusion/exclusion principle,

P(X\cup Y)=P(X)+P(Y)-P(X\cap Y)

By independence, we have P(X\cap Y)=P(X)P(Y), which is zero if either of P(X) or P(Y) is 0, which isn't guaranteed.

You might be interested in
Braulio is building a doghouse for his new puppy. He needs 27 9/10 feet of wood to complete the project. He found 11 1/2 feet in
frez [133]

Answer:

answer C

Step-by-step explanation:

ive done it before

5 0
3 years ago
X+Y=100<br> 4.5X+20Y=822<br> Elimination, graphing,and substitution methods.
serious [3.7K]

Answer:

y=10

4 SX +20 Y= 822

Elimination

X - 10 -4

UX - 822-20Y

6.5

10 -4 = 822-201

45

- 4.5 = 822 - 204

15.54=774

4 = 90:13

= -40.129

4 0
3 years ago
X ÷ 4 =6 need to find x please help
Sonja [21]

Answer:

24 make the brainliest pls

3 0
3 years ago
Read 2 more answers
If P = (-2,-1) and Q = (4,3) are the
Ivanshal [37]

Answer:

Step-by-step explanation:

P(-2,-1) and Q(4,3)

average of x-coordinates = (-2+4)/2 = 1

average of y-coordinates = (-1+3)/2 = 1

midpoint of PQ: (1,1)

distance between midpoint and Q = √((4-1)²+(3-1)²) = √13

(x-1)² + (y-1)² = 13

3 0
3 years ago
Please help <br><br> 2x^2 = y^3 x=2, y=?
andriy [413]

y is also 2.

2x^2 = 8

2^3 = 8

5 0
3 years ago
Read 2 more answers
Other questions:
  • What's the probability a 4 sided dice lands on the same side 10 times?
    12·1 answer
  • Kimberly needs to solve the quadratic equation: x^2 + x – 2 = 2. which statement about how kimberly should solve this equation i
    13·2 answers
  • Which ordered pair is the solution to the system of equations?
    13·2 answers
  • The cell phone plan from Company C costs $10 per month, plus $15 per gigabyte for data used. The plan from Company D costs $80 p
    11·1 answer
  • Michale has a loan with a balance of $200 at 14% simple interest. If he pays the loan back in 12 equal payments, how much will b
    14·1 answer
  • Select the correct answer from each drop-down menu. Prism M and pyramid N have the same base area and the same height. Cylinder
    7·2 answers
  • What is the I will give you a brain list and 20 points
    8·1 answer
  • Rewrite the equation 8x + 6x2 - 7= in standard form and identify a, b, and c.
    14·1 answer
  • Which of the
    5·1 answer
  • 3.
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!