solve for x:4 1/2 is to 4 as x is to 12

To test whether a data model is biased, one can compute the average difference between a predicted result and an actual result using the bias() function.

Unreasonably supporting or opposing someone or something because you allowed your opinions to cloud your judgement: The senator accused the media of being biased. Journalists need to be objective and free of political prejudice. Cognitive biases are systematic thinking errors that are often learned from cultural and personal experiences.

They lead to perceptional distortions when people make decisions. Even though data may appear to be objective, it can still be biased because it is gathered and handled by humans. We are not objective in the way we perceive things. Biases can be deliberate or unintentional. If given the choice between three shirts, a person might choose the one in their preferred hue above the other two.

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Correct Question:

A data analyst wants to find out how much the predicted outcome and the actual outcome of their data model differ. what function can they use to quickly measure this?

Answer:

80 students.

Step-by-step explanation:

Since there were 50 students, and 20 students wanted the chocolate icecream, that makes a proportion of 2/5. Then, there are 200 students in this whole seventh grade, and imagine that they have the same proportion of the 50 students. So, you should do 2/5 × 200, and the answer is 80.

I hope this helps you! ;)

Answer:

x< 9

Step-by-step explanation:

I'm not sure if it's right but I think it is .

Answer:

54.8

Step-by-step explanation:

Pythagorean theorem is a^2+b^2=c^2.

Plug the given values in to get 61^2+b^2=82^2

61^2 is 3,721 and 82^2 is 6,724.

6,724-3,721 is 3,003.

The square root of 3,003, rounded to a reasonable value, is 54.8.

The length of AC is 54.8.

Answer:

4.9

Step-by-step explanation:

Answer:

2

PLZ MARK BRAINLIEST

Step-by-step explanation:

(-8+4) - (3-9) = (-4) - (-6) = -4 + 6 = 2

Answer:  -(3/10)

Step-by-step explanation:

7/10=r-(-8/9)

(7/10)=r+(8/9)

(7/10)-(8/9)=r

  r =(7/10)-(8/9)

  r =(7/10)*(9/9)-(8/9)*(10/10)    [Multiply each fraction by another fraction equal to one, but with values that will convert the denominator into the same value]

  r =(63/90)-(80/90)

 r = -(27/90)  or -(3/10)

Answer:

D. $2,000

Step-by-step explanation:

Found this answer somewhere and it made sense so I hope its correct :D

Answer:

it is 3500 You take 4000 divide by 200 which is 20 months then take 150 times 20 equals 3000 then add 500

Step-by-step explanation:

c=-9-8c

+8c

9c=-9

c=-1

Hope this helps:D!!

The letter C is equal to negative one.

c = -1

Hope this helps!

a. False. The sample is 46%. We are 95% that the proportion of the population is between 43% and 49%.

b. True, this is the correct interpretation of a confidence interval of proportions.

c. False. The confidence interval does not say anything about the proportion of samples, just about the population.

d. False. As the confidence level decreases, so does z, which means that the margin of error decreases.

In a sample with a number n of people surveyed with a probability of success of, and a confidence level of, we have the following confidence interval of proportions.

In which

z is the score that has a p-value of.

The margin of error is:

So the confidence interval can be written as:

Interpreting a confidence interval:

x% confidence interval between (a,b) means that we are 95% sure that the true proportion of the population is between a and b.

In this problem, we have that:

95% confidence interval between (43%, 49%).

a. We are 95% confident that between 43% and 49% of Americans in this sample support the decision of the U.S. Supreme Court on the 2010 healthcare law.

False. The sample is 46%. We are 95% that the proportion of the population is between 43% and 49%.

b. We are 95% confident that between 43% and 49% of Americans support the decision of the U.S. Supreme Court on the 2010 healthcare law.

True, this is the correct interpretation of a confidence interval of proportions.

c. If we considered many random samples of 1,012 Americans, and we calculated the sample proportions of those who support the decision of the U.S. Supreme Court, 95% of those sample proportions will be between 43% and 49%.

False. The confidence interval does not say anything about the proportion of samples, just about the population.

d. The margin of error at a 90% confidence level would be higher than 3%.

False

As the confidence level decreases, so does z, which means that the margin of error decreases.

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Answer:

Input is the value of w and the function f = 24/w as length x breadth = area of rectangle

Heart if this helped

Answer:

14

Step-by-step explanation:

just add all the sides

5+5+2+2= 14

A(-3, -1)

B(0, -7)

C(-2, -4)

Therefore, the image is in the III quadrant (bottom left).

Answer:

7 miles per hour

Step-by-step explanation:

3.5 times 2.

Answer:

1/5 is biggest fraction

Step-by-step explanation:

1/5 = 0.2

1/10 =0.1

⅕ > ⅒

The biggest fraction in between 1/5 and 1/10 is 1/5.

An element of a whole is a fraction. The number is represented mathematically as a quotient, where the numerator and denominator are split. Both are integers in a simple fraction. A fraction appears in the numerator or denominator of a complex fraction. The numerator of a proper fraction is less than the denominator.

We have the fractions:

1/5 and 1/10.

To find the biggest fraction:

Here, 1 is the numerator in both of the fractions.

So, 10 and 5 are the denominators.

And 5 < 10

That means, 1 is separated in 5 parts and 10 parts.

1/5 = 0.2

And 1/10 = 0.1

0.2 > 0.1

Therefore, the fraction 1/5 is bigger than 1/10.

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The numerical probability of Flora picking out a blue sock is 1 out of 6, or approximately 0.1667, or 16.67%.

To calculate the numerical probability of Flora picking out a blue sock, we need to consider the total number of socks and the number of blue socks in the drawer.

Given:

Total number of socks = 12

Number of red socks = 9

Number of blue socks = 2

Number of green socks = 1

The probability of Flora picking a blue sock can be calculated as the ratio of the number of blue socks to the total number of socks:

Probability of picking a blue sock = Number of blue socks / Total number of socks

Probability of picking a blue sock = 2 / 12

Simplifying the fraction, we get:

Probability of picking a blue sock = 1 / 6

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Answer:

3x+14

Step-by-step explanation:

4(8)+3(x-6)

=32+3x-18

=3x+14

Answer: \(1,00,000(1+0.042)^x\)

Step-by-step explanation:

Given

The initial population of a city is \(P_o=1,00,000\)

The annual growth rate is \(4.2\%\)

after 1 year it is

\(\Rightarrow P_1=1,00,000+4.2\%\times 1,00,000\\\Rightarrow P_1=1,00,000(1+0.042)\)

after 2 years, it is

\(\Rightarrow 1,00,000(1+0.042)+4.2\%\times 1,00,000(1+0.042)\\\Rightarrow 1,00,000(1+0.042)^2\)

after x years it is

\(\Rightarrow P_x=1,00,000(1+0.042)^x\)

Answer:

A

Step-by-step explanation:

14 is not greater than 15

To form a triangle, the set of line segments must satisfy the triangle inequality theorem, which states that the sum of the lengths of any two sides of a triangle must be greater than the length of the third side. Therefore, we need to check if the given line segments 8 cm, 4 cm, and 3 cm meet this requirement.

We can start by checking if the sum of the two smaller sides (3 cm and 4 cm) is greater than the largest side (8 cm). 3 cm + 4 cm = 7 cm, which is less than 8 cm. Therefore, these three line segments cannot form a triangle.

In general, for a set of line segments to form a triangle, the largest side must be smaller than the sum of the other two sides. In this case, the line segment of 8 cm is too long compared to the other two sides, which makes it impossible to form a triangle.

In conclusion, there are no line segments that meet the requirements to form a triangle with lengths of 8 cm, 4 cm, and 3 cm.

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The given statement newton's root finding method always converge to the root at a quadratic convergence rate is False.

Newton's root finding method does not always converge to the root at a quadratic convergence rate. While the method can exhibit quadratic convergence under certain conditions, such as when the initial guess is close to the root and the function satisfies certain smoothness properties, it is not guaranteed in all cases.

The convergence rate of Newton's method depends on the behavior of the function and the initial guess. It can vary from quadratic convergence (the fastest rate) to linear convergence or even slower convergence in some cases. Factors such as multiple roots, singularities, or oscillatory behavior of the function can affect the convergence rate and stability of Newton's method.

Therefore, it is not accurate to claim that Newton's root finding method always converges to the root at a quadratic convergence rate.

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To calculate the present value of Ahmed's payments, we can use the formula for the present value of an annuity:

PV = PMT  [(1 - \((1 + r)^{(-n)\)) / r]

Where:

PV = Present Value

PMT = Payment amount per period (BD 5700)

r = Interest rate per period (8% or 0.08)

n = Number of periods (12 years)

Substituting the values into the formula, we get:

PV = 5700 * [(1 - \((1 + 0.08)^{(-12)}\))) / 0.08]

Calculating the expression within the brackets first:

(1 - \((1 + 0.08)^{(-12)\)) / 0.08 = 0.652592574

Now, multiply this value by the payment amount:

PV = 5700 * 0.652592574

PV ≈ BD 3708.349811

Rounding to two decimal places, the present value of Ahmed's payments is approximately BD 3708.35. Therefore, none of the given options (OBD 46392.10, OBD 42955.64, OBD 116823.19, BD 108169.62) are correct.

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The maximum possible change in the money supply is $1000.

In the given question, if the required reserve ratio is 10% and the Fed conducts an open market purchase of $100, we have to find the maximum possible change in the money supply.

The required reserve ratio is 10%.

The Fed conducts an open market purchase of $100.

So the maximum possible change in the money supply is

money multiplier=1/RRR

money multiplier=100/10

money multiplier=10

Open market purchase of $100

Change in money supply is 10*100=$1000

So, the maximum possible change in the money supply is $1000.

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Answer:

63

Step-by-step explanation:

60% of $100 is just %60 and 5% of 60 is 3 so, 60 + 3 = $63

Answer:

$45

Step-by-step explanation:

So, first we would find 60% of the $100

100 x .60 = 60

(When finding the amount of a percentage we move the decimal over twice)

then subtract what we got from the original price to find what he paid before tax:

100 - 60 = 40

Now we find 5% of $100:

100 x .05 = 5

Finally, we add this to what he was paying before taxes:

40 + 5 = 45, so $45

Hope this helps!! :)

Answer:

4800m³

Step-by-step explanation:

V=\(\frac{lwh}{3}\)=\(\frac{(30)(24)(20)}{3}\) =4800

Answer: ?

Step-by-step explanation:

(a) The number 72% is a D. statistic.

(b) The unknown true percentage of American citizens who like ''real TV'' is a C. parameter.

It is related to statistics and parameters.

(a) The number 72% is a statistic because it represents a summary measure of the sample of individuals who participated in the phone-in poll.

A statistic is a numerical value calculated from a sample of data, and it is used to make inferences about the population from which the sample was drawn.

(b) The unknown true percentage of American citizens who like ''real TV'' is a parameter.

A parameter is a numerical characteristic of a population, such as a mean, proportion, or standard deviation, and it is typically unknown and estimated from sample data.

In this case, the percentage of all American citizens who like ''real TV'' is unknown and cannot be directly observed, so it is considered a parameter.

The phone-in poll only represents a sample of individuals who called in to the newspaper and cannot be used to estimate the parameter for the entire population.

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