nicole wants to conduct a survey of the opinions of students at her middle school. which survey sample would give her the most accurate results?

A probability distribution is a list of all potential outcomes from an experiment along with the probability assigned to each occurrence.

The term "probability distribution" refers to a mathematical function or table that expresses the possibilities of occurring for various potential outcomes in a certain experiment.

The chance of a variety of outcomes occurring within a given range is provided by the probability distribution. It displays the total of all potential values, which are dispersed in a range from 0 to 1, and which should add up to 1.

The probability distribution is related to the following information:

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Answer:

35

Step-by-step explanation:

Answer:

35 is your answer :>

Step-by-step explanation:

The probability of the shorter segment being less than 14 times the longer segment is 1/15.

The line segment of length l can be divided into two segments of lengths x and y, such that x + y = l. Since the point is chosen at random, the probability of x being shorter than 14y is the same as the probability of y being longer than x/14. Since the point can be chosen anywhere along the line segment, the probability of the ratio of x to y being less than 14 is equal to the probability of x/y being less than 14, which is 1/15. Therefore, the probability of the ratio of the shorter to the longer segment being less than 14 is 1/15.

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Answer:

7x - 3y = -34

7x - 3(2) = -34

7x - 6 = -34

7x - 6 + 6 = -34 + 6

7x = -28

7x/7 = -28/7

x = -4

7(-4) - 3y = -34

-28 - 3y = -34

-28 + 28 - 3y = -34 + 28

-3y = -6

-3y/-3 = -6/-3

y = 2

(-4, 2)

Step-by-step explanation:

The commission function is an illustration of the absolute functions

The commission for the sales of 7 cars is 16

The function is given as:

\(\mathbf{E(x)=\mid 5- \frac{6x}{2}\mid}\)

When an employee sells 7 cars, we have:

x = 7

So, the equation becomes

\(\mathbf{E(x)=\mid 5- \frac{6\times 7}{2}\mid}\)

Simplify

\(\mathbf{E(x)=\mid 5- 3\times 7\mid}\)

\(\mathbf{E(x)=\mid 5- 21\mid}\)

Simplify

\(\mathbf{E(x)=\mid- 16\mid}\)

Remove absolute brackets

\(\mathbf{E(x) = 16}\)

Hence, the commission for the sales of 7 cars is 16

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Answer: Yes it does.

Step-by-step explanation:

Answer:

11

Step-by-step explanation:

hope this helps with the work

The proportion of a normal distribution between z-scores of -0.25 and +0.25 is 0.1974, between -0.67 and +0.67 is 0.4994, and between -1.20 and +1.20 is 0.7699.

The normal distribution is a bell-shaped curve that is symmetrical about the mean. The area under the curve is equal to 1 and the z-score represents the standard deviations from the mean

a) The proportion of a normal distribution between z = -0.25 and z = +0.25 is 0.1974.
b) The proportion of a normal distribution between z = -0.67 and z = +0.67 is 0.4994.
c) The proportion of a normal distribution between z = -1.20 and z = +1.20 is 0.7699.

These proportions can be found by using a calculator with normal distribution functions.

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Answer:

x² + 34x + 104 = 0

x² + 34x = -104

x² + 34x + ((1/2)(34))² = -104 + ((1/2)(34))²

x² + 34x + 17² = -104 + 17²

x² + 34x + 289 = 185

(x + 17)² = 185

x + 17 = +√185

x = -17 + √185

Answer:

52 miles

Step-by-step explanation:

They drive 325 miles in 6 1/4 hours. Convert 6 1/4 to 6.25 and divide. 325/6.25= 52 mph

The values of p for which the series ∑(n=1)^(∞) ((-1)^n / (n^p)) converges conditionally are p > 0.

To determine the values of p for which the series ∑(n=1)^(∞) ((-1)^n / (n^p)) converges conditionally, we can apply the alternating series test.

According to the alternating series test, a series of the form ∑((-1)^n * b_n) converges conditionally if:

1. The terms b_n are positive and decreasing (|b_n+1| ≤ |b_n|), and

2. The limit of b_n as n approaches infinity is 0 (lim(n→∞) b_n = 0).

In this case, our terms are b_n = 1 / (n^p). Let's check these conditions:

1. The terms are positive and decreasing:

  To satisfy this condition, we need to show that |(1 / ((n+1)^p))| ≤ |(1 / (n^p))| for all n.

  Taking the ratio of consecutive terms:

  |(1 / ((n+1)^p)) / (1 / (n^p))| = (n^p) / ((n+1)^p) = (n / (n+1))^p.

Since (n / (n+1)) is less than 1 for all n, raising it to the power p will still be less than 1 for p > 0. Therefore, the terms are positive and decreasing.

2. The limit of the terms as n approaches infinity is 0:

  lim(n→∞) (1 / (n^p)) = 0 for p > 0.

Based on the conditions of the alternating series test, the series converges conditionally for p > 0.

Therefore, the values of p for which the series ∑(n=1)^(∞) ((-1)^n / (n^p)) converges conditionally are p > 0.

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Answer:

-104 is the answer .....

Answer: The answer is B

Step-by-step explanation:

-(5n-1\right)\left(25n^2+5n+1)

u gotta flip it and the answer is B on your screen!!!

The area of the rose garden is 129 sq. ft.

Consider the following diagram.

The dimensions of the rectangular garden:

length = 15 ft and width = 9 ft

Using the formula for the area of rectangle,

The area of the rectanguler garden would be,

A₁ = 15 × 9

A₁ = 135 ft²

In the center of the garden, she puts a smaller rectangular patch of grass. And the dimensions of the grass is 2 feet by 3 feet.

The area of rectangular patch is:

A₂ = 2 × 3

A₂ = 6 ft²

So, the area of the rose garden would be,

A = A₁ - A₂

A = 135 - 6

A = 129 ft²

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Find the complete question below.

Answer: Its B. Side a is 2 inches long and side b is 1.5 inches long.

Step-by-step explanation:

Answer:

well is there a picture ? so i can see if it does or doesnt

Step-by-step explanation:

Answer:

They each get 1 3/4 pounds of cashews

Step-by-step explanation:

7 ÷ 4 = 1.75

1.75 ( 1 3/4)

A type of article that provides a quantitative summary of the evidence is a systematic review and meta-analysis.

A systematic review is a comprehensive and rigorous approach to synthesizing existing research literature on a specific topic. It involves a systematic search for relevant studies, an assessment of their quality and relevance, and a synthesis of the findings.

A meta-analysis, on the other hand, is a statistical method that combines the results of multiple studies to generate a quantitative summary of the evidence.

Systematic reviews and meta-analyses are considered the highest level of evidence in evidence-based medicine and other fields. They provide an objective and rigorous assessment of the available evidence, helping to guide clinical practice, policy decisions, and further research.

By pooling data from multiple studies, meta-analyses can provide more precise estimates of treatment effects or other outcomes of interest.

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Answer:

d=2

Step-by-step explanation:

10+3d=16

3d=6

divide both sides by 3

d=2

Subtract 10 from both sides.

Subtract 10 from 16 to get 6.

Divide both sides by 3.

Divide 6 by 3 to get 2.

Answer:

3

Step-by-step explanation:

Answer:

3

Step-by-step explanation:

•Factors of 12 are 1, 2, 3, 4, 6 and 12 ... ... because 2 × 6 = 12, or 4 × 3 = 12, or 1 × 12 = 12

•Factors of 21: 1, 3, 7, 21

Step-by-step explanation:

i don't know

I don't have a calculator

Answer:

Step-by-step explanation:

The salesman earned a total sum of $2,165.

Given that, a shoe salesman sold $4,125 in shoes and earns a 4% commission, his base salary is $2000.

The amount of commission earned by the shoe salesman is equal to the product of the total sales and the commission rate, which is 4% or 0.04 as a decimal:

Commission = Total sales x Commission rate

Commission = $4,125 × 0.04

Commission = $165

To find the total earnings of the salesman, we add his commission to his base salary:

Total earnings = Base salary + Commission

Total earnings = $2,000 + $165

Total earnings = $2,165

Therefore, the salesman earned $2,165.

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The equation in the slope-intercept form is:

y = (1/2)*x + 3

A general linear equation is:

y = a*x + b

Where a is the slope and b is the y-intercept.

To get the slope, we need two points on the line, by using the graph we can identify the points: (0, 3) and (2,4)

Then the slope is:

\(a = \frac{4 - 3}{2 - 0} = 1/2\)

And we also can see that the y-intercept is y = 3, because of the point (0,3)

Then the line is:

y = (1/2)*x + 3

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The example of quantitative data among the given options is option A. North America is moving across Earth's surface several centimeters per year

Quantitative data refers to numerical or measurable information. In option A, the statement provides specific numerical measurements by stating that North America is moving across Earth's surface several centimeters per year. This information can be quantified and measured, making it an example of quantitative data.

Options B, C, D, and E do not provide numerical or measurable information. They describe qualitative characteristics or observations that cannot be easily quantified or measured.

B. The river has flooded a low-lying area describes a qualitative observation of a flood occurrence.

C. The volcano is releasing much steam describes a qualitative observation of steam release.

D. Volcanoes are dangerous makes a general statement without providing specific numerical information.

E. When held, one rock feels heavier than another rock is a subjective comparison and does not provide specific quantitative measurements.

Therefore, option A is the example of quantitative data as it provides numerical information that can be measured and quantified.

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The equation of height of each pyramid inside the cube is,

⇒ h = 2V / B

The equation that represent the volume of each pyramid is,

⇒ V = LWH / 3

The equation that represent the volume of each pyramid if the height of each pyramid is h and area of the base is B,

⇒ V = 1/3 (B × h)

Given that;

To find the formula for height and volume of pyramid.

Now, We know that;

The equation of height of each pyramid inside the cube is,

⇒ h = 2V / B

And, The equation that represent the volume of each pyramid is,

⇒ V = LWH / 3

And, The equation that represent the volume of each pyramid if the height of each pyramid is h and area of the base is B,

⇒ V = 1/3 (B × h)

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To find all points with a specific x-coordinate, you need to have the equation of the curve or the data points representing the graph. If you have an equation, you can substitute the desired x-coordinate into the equation and solve for the corresponding y-coordinate.

If you have data points, you can look for the points that have the specified x-coordinate.

For example, let's say you have the equation of a line: y = 2x + 3. If you want to find all points with an x-coordinate of 5, you can substitute x = 5 into the equation to find y. In this case, y = 2(5) + 3 = 13. So the point (5, 13) has an x-coordinate of 5.

to find points with a specific x-coordinate, you need the equation of the curve or the data points. You can substitute the desired x-coordinate into the equation or look for the points that have the specified x-coordinate in the given data.

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To test the hypothesis H₁: μx = μy versus Hoxy, where μx and μy represent the means of X and Y respectively, we can perform a two-sample t-test. The test compares the means of two independent samples to determine if they are significantly different from each other.

The given information provides the sample means (X = 33.8, Y = 32.5) and the sample standard deviations (Sx = 3.9, Sy = 5.1). The sample sizes for both X and Y are n = m = 25.

Using this information, we can calculate the test statistic, which is given by:

t = (X - Y) / sqrt((Sx^2 / n) + (Sy^2 / m))

Plugging in the values, we get:

t = (33.8 - 32.5) / sqrt((3.9^2 / 25) + (5.1^2 / 25))

Next, we need to determine the degrees of freedom for the t-distribution. Since the sample sizes are equal (n = m = 25), the degrees of freedom for the test is given by (n + m - 2).

Using the t-distribution table or software, we can find the critical value corresponding to a significance level of α = 0.05 and the degrees of freedom.

Finally, we compare the calculated test statistic with the critical value. If the test statistic falls within the rejection region (i.e., the absolute value of the test statistic is greater than the critical value), we reject the null hypothesis. The p-value can also be calculated, which represents the probability of observing a test statistic as extreme or more extreme than the calculated value, assuming the null hypothesis is true.

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