do people who drink the alcohol equivalent of at least two beers a night (group 1) do worse academically than those who drink less than one beer (group 2)? information yes no the maximum difference between group 1 and group 2 that is likely if there is no true difference between the two groups the variances of group 1 and group 2 the sizes of group 1 and group 2 the difference between the means of group 1 and group 2

Answer:

11.2

Step-by-step explanation:

multiply 1.6 by 7 since that's how many days there are in a week

Answer:

11.2

Step-by-step explanation:

you collect 1.6 packs of chile peppers a day there is 7 days in a week 1.6x7=11.2

hope it helps.

The interquartile range (IQR) is a measure of the spread or variability of the middle 50 percent of the data.

The interquartile range (IQR) is a statistical measure that describes the spread or dispersion of the middle 50 percent of the data. It is calculated as the difference between the third quartile (Q3) and the first quartile (Q1) of a dataset.

The quartiles divide a dataset into four equal parts, each representing 25 percent of the data. The first quartile (Q1) represents the lower boundary of the middle 50 percent, while the third quartile (Q3) represents the upper boundary of the middle 50 percent. The IQR captures the range of values within this middle range.

By focusing on the middle 50 percent of the data and excluding the extreme values, the interquartile range provides a measure of variability that is less affected by outliers or extreme values. It is commonly used in descriptive statistics and data analysis to understand the spread and distribution of a dataset, particularly when the data is not symmetrically distributed or contains outliers.

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Answer:

Slope = 5/2

Step-by-step explanation:

Slope = (y2-y1)/(x2-x1)

In this case the two points are (6,7) and (4,2)
Using the formula we find that the slope is:
slope = (2-7)/(4-6)
slope = -5/-2
The negatives cancel out and therefore the final answer or slope is 5/2.

Answer: 75.3

Step-by-step explanation: Pi x r^2 x h/3

3.14 = pi

r=2.99848

3.14 x 2.99848^2 x 8/3 = 75.32

-20: You owe me $20

14: You have $14.

-6: You owe me $6.

8: You have $8.

In total, you have $22, but owe me $26.

In the end, you're $4 in the hole.

-20 + 14 + (-6) + 8 = -4

Answer:

-4

Step-by-step explanation:

-20+-6+14+8

-26+22

-4

Therefore, the answer is-4

The correct option of the given question is option(c) becomes narrower.

Based on the given information, when the confidence level is lowered from 98% to 97%, the confidence interval for the population mean μ becomes narrower. So, the correct answer is option c. becomes narrower.

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When the confidence level is lowered from 98% to 97%, the confidence interval for the population mean μ becomes wider.

This is because a higher confidence level implies a narrower interval to provide a higher level of certainty in capturing the true population mean. Conversely, when the confidence level is decreased, the interval needs to be wider to allow for a larger margin of error and account for the reduced confidence requirement.

Widening the interval ensures that the estimate is more conservative and includes a broader range of possible values for the population mean. Therefore, the confidence interval for μ becomes wider as the confidence level is lowered.

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Answer:

x = 11

z = 86

Step-by-step explanation:

8x + 6 and 10x-16 are vertical angles

Vertical angles are pairs of angles that are opposite each other and have the same vertex, or point of intersection. They are formed when two lines intersect at a point, and are always congruent, or of equal measure.

To solve this equation, we need to isolate the variable x on one side of the equation. To do this, we can start by subtracting 6 from both sides of the equation:

8x + 6 - 6 = 10x - 16 - 6

8x = 10x - 22

Now we can subtract 8x from both sides of the equation:

8x - 8x = 10x - 22 - 8x

0 = 2x - 22

To solve for x, we can add 22 to both sides of the equation:

0 + 22 = 2x - 22 + 22

22 = 2x

Finally, we can divide both sides of the equation by 2 to find the value of x: 22 / 2 = 2x / 2

x = 11

Therefore, the solution to the equation is x = 11.

Now that we have x, z is a supplementary angle to 8x + 6 (or you could do 10x - 16)

Supplementary angles are pairs of angles that add up to 180 degrees. They are formed when two lines intersect at a point, and the angles formed at the intersection are supplementary.

First plug in x, 8x + 6 = 8(11) + 6 = 88 + 6 = 94

180 - 94 = z

z = 86

Here, we want to use the given number of 3's to get the answer of 5

Mathe matically, we can have this as;

By adding what we have above , we get 6

Dividing this by 3, we get 2

Then consequently, we add this to 3 and we get 5

The expression is zx+x²+2z. The values are x=-4 and z=-6. The expression value we get 28.

Given that,

The expression is zx+x²+2z.

The values are x=-4 and z=-6.

We have to find the expression solution will be.

The expression is zx+x²+2z.

A mathematical expression is a phrase that has a minimum of two numbers or variables and at least one mathematical operation.

=zx+x²+2z

=(-6)(-4)+(-4)²+2(-6)

Square the -4.

=(-6)(-4)+16+2(-6)

Multiply -6 and -4

=24+16+2(-6)

Multiply -6 and 2

=24+16-12

Adding 24 and 16

=40-12

Subtract 40 and 12

=28

Therefore, the expression value we get 28.

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Step-by-step explanation:

Translation, Reflection and Rotations does not change the size of the figure. As we can see, quadrilateral A'B'C'D' is bigger than the original ABCD, so an enlargement is needed.

The answer is Enlargement, reflection over the y-axis. (C)

Answer:

The distance between these two points is 5.099.              

Answer:

Your answer is \(\sqrt{73}\) or 8.54400374532...

Hope this helps!

Step-by-step explanation:

To find distance, the formula is:

\(\sqrt{(x_{2 } - x_{1})^{2} + (y_{2} - y_{1} )^{2} }\)

So ( -9,9 ) and (-1, 6 ) becomes :

\(\sqrt{(-1 - (-9))^{2} + ( 6 - 9 )^{2} } }\)

And :

\(\sqrt{8^{2}+-3^{2} }\)  =

\(\sqrt{64+9}\)  =

\(\sqrt{73}\)

Answer:

11

Step-by-step explanation:

2x +1 =23

2x =23 - 1

2x =22

x=22 :2

x=11

Answer:

h

Step-by-step explanation:

Answer:

c

Step-by-step explanation:

because all of the lines except for the last one is the same. so its aaaab

Answer:

To the second decimal place would be 28 because 27.65 is closer to 28 than 27. Hoped this helped.

The variance of a sample or a population cannot be negative. This means that option c, negative, is the correct answer.

Variance is a statistical measure that quantifies the dispersion or spread of data points around the mean. It tells us how much the individual data points deviate from the average. The variance is always a non-negative value because it is calculated by summing the squared differences between each data point and the mean, divided by the total number of data points.
If the variance were negative, it would imply that the sum of the squared differences between each data point and the mean is less than zero. However, this is not possible because squared differences are always positive or zero.
On the other hand, options a, zero, and d, less than 1, are incorrect. The variance can be zero if all the data points in the sample or population are the same, indicating no dispersion. Additionally, the variance can be any positive value, including values less than 1.
To summarize, the variance of a sample or a population cannot be negative, making option c, negative, the correct answer.

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Answer:

L={∅}

Step-by-step explanation:

Answer: 3 centimeters equals 12 meters

Hope this helps!

Answer:

Three centimeters represent 12 meters.

Step-by-step explanation:

The graph of the equation y = -x³  is attached below  

What is a graph ?

The set of ordered pairs with the displaystyle f(x)=y is the graph of a function f in mathematics. These pairs, which are Cartesian coordinates of points in two-dimensional space and hence constitute a subset of this plane in the typical situation when x and f(x) are real numbers, are examples of real numbers.

To find the value of the equation we have to substitute the value of x and find the value of y

When x = 0

          y = 0

When x = 1

          y = - (1)³

             = -1

When x = -1

          y = - (-1)³

             = 1

When x = 2

          y = - (2)³

             = -8

When x = -2

          y = - (-2)³

             = 8

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Light bulbs is normally distributed with a variance of 625 and a mean lifetime of 520 hours, we need to calculate the cumulative probability up to 549 hours. The answer will be rounded to four decimal places.

Given a normally distributed lifetime with a mean of 520 hours and a variance of 625, we can determine the standard deviation (σ) by taking the square root of the variance, which gives us σ = √625 = 25.

To find the probability of a bulb lasting for at most 549 hours, we need to calculate the area under the normal distribution curve up to 549 hours. This can be done by evaluating the cumulative distribution function (CDF) of the normal distribution at the value 549, using the mean (520) and standard deviation (25).

The CDF will give us the probability that a bulb lasts up to a certain point. Rounding the result to four decimal places will provide the desired precision.

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The problem involves using normal distribution to find the probability of a given outcome. Using the Z-score, we can determine that the probability of a light bulb lasting for at most 549 hours is approximately 0.8770 or 87.70%

Given the mean (µ) of the lifetime of a bulb is 520 hours. Also, the variance (σ²) is given as 625. Thus, the standard deviation (σ) is the square root of the variance, which is 25.

To find the probability of a bulb lasting for at most 549 hours, we first calculate the Z score. The Z-score formula is given as follows: Z = (X - µ) / σ, where X is the number of hours, which is 549. So substitute the given values into the formula. Z = (549 - 520) / 25, the Z value is 1.16.

We then look up the Z-table to find the probability associated with this Z-score (1.16), which is approximately 0.8770. Therefore, the probability of a bulb lasting for at most 549 hours is approximately 0.8770 or 87.70%.

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Answer: mandatory and discretionary.

Answer:

Step-by-step explanation:

0.4375

Answer:

6.25%of 112 is 7

Step-by-step explanation:

hope it helps you

Using the the Distributive Property to express 64 + 24 is 88.

This property states that multiplying the sum of two or more addends by a number produces the same result as multiplying each addend separately by the number and then adding the products together.

When you multiply a value by a sum, the distributive property of multiplication over addition is used. For instance, suppose you want to multiply 5 by the sum of 10 + 3. When we have similar terms, we usually add the numbers first and then multiply by 5. 5(10 + 3) = 5(13) = 65.

In this case, 64 + 24 will be;

= 8(8 + 3)

= 88

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The probability of having exactly 6 girls in an 8-child family, excluding multiple births, is 0.39%.

If the incidence of one event has no impact on the likelihood of the other, then two events are considered independent in probability. By calculating the likelihood of each event, this probability is determined.

From the given scenario, we can tell that each time the probability of having a girl is equal to the probability of having a boy. Then, the probability of this is given by,

\(\text{P(boy)=P(girl)}=\frac{1}{2}\)

The probability of having exactly 6 girls and 2 boys is,

\(\begin{aligned}\text{P(6 girls, 2 boys)}&=\frac{1}{2}\cdot\frac{1}{2}\cdot\frac{1}{2}\cdot\frac{1}{2}\cdot\frac{1}{2}\cdot\frac{1}{2}\cdot\frac{1}{2}\cdot\frac{1}{2}\\&=\frac{1}{256}\\&=0.0039\\&=0.39\%\end{aligned}\)

The required answer is found to be 0.39%.

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No, the LDA classifier and the Bayes classifier would not necessarily give similar boundaries when trained on a large amount of training data from an arbitrary distribution.

The LDA (Linear Discriminant Analysis) classifier assumes that the input features are normally distributed and that the class covariances are equal. It finds linear boundaries that maximize the separation between classes based on these assumptions. On the other hand, the Bayes classifier makes decisions based on the class conditional probabilities and prior probabilities of the classes. It can handle arbitrary distributions and does not make assumptions about the class covariances. Therefore, even with a large amount of training data, if the distribution of the data does not conform to the assumptions of LDA (e.g., non-normal distributions or unequal class covariances), the LDA classifier may not give similar boundaries to the Bayes classifier.

The LDA and Bayes classifiers may not give similar boundaries when trained on data from an arbitrary distribution, as the LDA classifier relies on specific assumptions about the data distribution that may not hold true in practice.

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Answer: x = 7

Step-by-step explanation:

1. Set line PS equal to QR

2x - 3 = 11

2. Add 3 to both sides:

2x = 14

3. Divide both sides by two:

2x/2 = 14/2

4. Simplify

x = 7

Answer:

6

Step-by-step explanation:

3 sides, 3 angles.

Answer:

m<1= 125

Step-by-step explanation:

Answer:

m<1=125

Step-by-step explanation:

70+55=125

All angles in a triangle will equal 180

180-125=55

180-55=125

125

The square of a monomial is 0.0001a^8x^8, so what is the monomial?The monomial is the result of the square root of the given quadratic equation. the monomial is 0.01ax.The monomial, in this case, is 0.01ax.

The given square of a monomial is 0.0001a^8x^8, so the monomial is the square root of this quantity.We know that the square root of a quantity is the value that, when multiplied by itself, yields the given quantity.

Therefore, we can write this as:Monomial = √(0.0001a^8x^8)On simplifying,0.0001a^8x^8 = (0.01ax)^2Therefore,Monomial = √(0.0001a^8x^8) = √[(0.01ax)^2] = 0.01axTherefore,

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