4 years ago

Can you answer it please?

1 answer:

5 0

The answer is C BECAUSE for this question, you can think relatively. They give you the responses for 54 people surveyed, however they want the answer from 1,140 students. You can set up the proportion of 30/54 = x/1140 to find out the number of students agreeing to keep the mascot. You get 1900/3 or 633 1/3.

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PUPUL 2

grandymaker [24]

Answer:

37.045

Step-by-step explanation:

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3 years ago

Is the square root of 7 greater or less then 14/5

Leto [7]

Answer:

less then

Step-by-step explanation:

the square root of 7 is 2.64 and 14/5 is = 2.8

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3 years ago

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]

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(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

If c(x)=3x-1 and k(x)=x^2-2x+1, what is the value of (c°k)(5)

Verdich [7]

Is the equation supposed to be like this

(c o f)(5)?

7 0

3 years ago

On a fair, 8-sided die, each face is painted as follows: the 1 and 2 are painted green, 3 through 6 are painted blue, 7 is paint

Alinara [238K]

Answer:

0.25

Step-by-step explanation:

outcomes painted in blue: {3, 4, 5, 6}

number of even outcomes painted in blue: 2

number of total outcomes: 8

Therefore, the probability that the roll will show an even number and a face that is painted blue is: 2/8 = 0.25

7 0

3 years ago