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Sidana [21]
2 years ago
10

Pls help and tanks pls pls me

Mathematics
1 answer:
ollegr [7]2 years ago
8 0

Answer:they made 14.76

Step-by-step explanation:

at the bake sale

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In 2014, 85 percent of households in the United States had a computer. For a randomly selected sample of 200 households in 2014,
DochEvi [55]

Answer:

The mean of C is 170 households

The standard deviation of C, is approximately 5 households

Step-by-step explanation:

The given parameters are;

The percentage of households in the United States that had a computer in 2014 = 85%

The size of the randomly selected sample in 2014, n = 200

The random variable representing the number of households that had a computer = C

Therefore, we have;

The probability of a household having a computer P = 85/100 = 0.85

Let

Therefore;

The mean (expected) number in the sample, μₓ, = E(x) = n × P is given as follows;

μₓ = 200 × 0.85 = 170

The mean of C = μₓ = 170

The variance, σ² = n × P × (1 - P) = 200 × 0.85 × (1 - 0.85) = 25.5

Therefore;

The standard deviation, σ = √(σ²) = √(25.5) ≈ 5.05

The standard deviation of C, σ ≈ 5 households (we round (down) to the nearest whole number)

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Which is f(-3) for quadratic function graphed
liberstina [14]
The -3 in f(-3) is the X coordinate, so you need to find where the line is on the Y coordinate at that point.

The line is at Y = -9 
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3 years ago
Divide -1.53 ÷ 0.17 enter your answer in the box PLEASE HELLPPP
marshall27 [118]

Answer:

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Step-by-step explanation:

-1.53  ÷  0.17 =‬ -9

check work:

-9 x 0.17 = -1.53

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Sam has 4 gallons of juice. Each glass holds 1/5 of a gallon . How many glasses can he fill
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Answer:

20

Step-by-step explanation:

Divide 4 by 1/5 in decimal form, 1/5 in decimal form is 0.20. You can get the decimal form by dividing 1 by 5.

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I think it would be A

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