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Advocard [28]
2 years ago
15

Determine if the following conditional statement is true or false,

Mathematics
1 answer:
Marat540 [252]2 years ago
6 0

Answer:AlF3

Step-by-step explanation:

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Suppose that X1 and X2 are independent random variables each with a mean μ and a variance σ^2. Compute the mean and variance of
Deffense [45]

Mean:

E[Y] = E[3X₁ + X₂]

E[Y] = 3 E[X₁] + E[X₂]

E[Y] = 3µ + µ

E[Y] = 4µ

Variance:

Var[Y] = Var[3X₁ + X₂]

Var[Y] = 3² Var[X₁] + 2 Covar[X₁, X₂] + 1² Var[X₂]

(the covariance is 0 since X₁ and X₂ are independent)

Var[Y] = 9 Var[X₁] + Var[X₂]

Var[Y] = 9σ² + σ²

Var[Y] = 10σ²

5 0
3 years ago
I am so grateful if you help
zmey [24]

Answer:#4 is 3L Starwberry juice and 6L orange Jucie.

Step-by-step explanation:

8 0
2 years ago
NEED ANSWER ASAP:
andriy [413]

Answer:

14/27 feet

Step-by-step explanation:

2 1/3 feet : 4 1/2 feet

= 7/3 : 9/2

= 7/3 ÷ 9/2

= 7/3 × 2/9

= (7*2)/(3*9)

= 14/27 feet

2 1/3 feet : 4 1/2 feet = 14/27 feet

8 0
3 years ago
At the charity drive , Jeremiah must stuff at least 350 bags with cans of food . He can stuff 4 bags in one minute,and he has 90
Ostrovityanka [42]
4m + 90 = ≥ 350
350 - 90 = 260 ÷ 4 = 65

It will take at least 65 minutes for Jeremiah to complete the task. 

Replace the variable with 65 to double check.
4 (65) + 90 = 350
5 0
3 years ago
Read 2 more answers
Triangle ABC has side lengths 8 inches, 17 inches, and 15 inches. Sofia uses the following steps to conclude that triangle ABC i
makkiz [27]

Answer: It's C.

Step-by-step explanation: She isn't using the pythrogorean theorem

8 0
2 years ago
Read 2 more answers
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