Answer number 9 please.

The class midpoint is 59

In statistics, a class mark is the average of a frequency distribution's upper and lower bounds for a class.

Class Interval Class Mid Point

14 32

32- 50

50-68           50 + 68/2 = 59

Read more about class mark here:

https://brainly.com/question/19473137

#SPJ1

Answer:

Step-by-step explanation:

To express the confidence interval 0.039 < p < 0.479 in the form p ± E, we need to find the midpoint of the interval and half of the width.

The midpoint of the interval is the average of the lower and upper bounds:

Midpoint = (0.039 + 0.479) / 2 = 0.259

The width of the interval is the difference between the upper and lower bounds:

Width = 0.479 - 0.039 = 0.44

Half of the width is obtained by dividing the width by 2:

Half Width = 0.44 / 2 = 0.22

Therefore, the confidence interval 0.039 < p < 0.479 can be expressed as:

p ± E = 0.259 ± 0.22

So, the correct option is:

D. 0.259 ± 0.22

know more about confidence interval: brainly.com/question/32546207

#SPJ11

Answer:

The number inside radical is 29

Step-by-step explanation:

Given:

To find:

Distance Formula:

\(\displaystyle \large{\sqrt{(x_2-x_1)^2+(y_2-y_1)^2}}\)

Determine (x2,y2) = (1,1) and (x1,y1) = (3,-4). Therefore:

\(\displaystyle \large{\sqrt{(1-3)^2+(1-(-4))^2}}\\\displaystyle \large{\sqrt{(-2)^2+(1+4)^2}}\\\displaystyle \large{\sqrt{4+5^2}}\\\displaystyle \large{\sqrt{4+25}}\\\displaystyle \large{\therefore \sqrt{29}}\)

Therefore, the number inside the radical is 29

Answer:

\(\sqrt{29}\)

Step-by-step explanation:

Hi there!

We are given the points (1, 1) and (3, -4)

We want to find the distance between the points

Distance can be found using the formula \(\sqrt{(x_2-x_1)^2 + (y_2-y_1)^2}\), where \((x_1, y_1)\) and \((x_2, y_2)\) are points

We can label the values of the points first, before calculating to help avoid confusion and mistakes.

\(x_1 = 1\\y_1 = 1\\x_2 = 3 \\y_2 = -4\)

Now substitute these values into the formula

d = \(\sqrt{(x_2-x_1)^2 + (y_2-y_1)^2}\)

d = \(\sqrt{(3-1)^2 + (-4-1)^2}\)

Now, using order of operations, first simplify what is in the parentheses:

d = \(\sqrt{(2)^2 + (-5)^2}\)

Now raise 2 and -5 to the second power.

d = \(\sqrt{4 + 25}\)

Add the numbers together under the radical

d = \(\sqrt{29}\)

The distance is \(\sqrt{29}\)

Hope this helps!

See more on finding the distance here: https://brainly.com/question/24774555

No, a two-sample z interval for a difference between proportions would not be an appropriate procedure to determine if the difference in proportions between US buyers who would have chosen opinion B and US buyers who would have chosen opinion A is statistically significant.

A two-sample z interval for a difference between proportions is used to estimate the difference between two proportions in a population when the sample sizes are large and the data is normally distributed. This procedure assumes that the samples are independent, and the population proportions are known or can be estimated accurately.

However, in this case, the question is asking to determine if the difference in proportions between US buyers who would have chosen opinion B and US buyers who would have chosen opinion A is statistically significant. This implies that the sample sizes may not necessarily be large and the data may not be normally distributed. Additionally, the question does not mention anything about the population proportions being known or estimated accurately.

A more appropriate procedure for determining if the difference in proportions between US buyers who would have chosen opinion B and US buyers who would have chosen opinion A is statistically significant would be a hypothesis test, specifically a two-sample proportion test, such as the z-test or chi-squared test. These tests would allow for a formal comparison of the proportions and assess the statistical significance of the difference between the two proportions.

Therefore, a two-sample z interval for a difference between proportions would not be an appropriate procedure to determine the statistical significance of the difference in proportions between US buyers who would have chosen opinion B and US buyers who would have chosen opinion A. Instead, a two-sample proportion test would be more appropriate for this analysis.

To learn more about two-sample z interval here:

brainly.com/question/30807430#

#SPJ11

Answer:

The answer is b

Step-by-step explanation:

The function (f-g)(x) is in standard form -3x²+ 3x -14.

A quadratic function is  of the form f(x) = ax2 bx c, where a, b, and c are numbers for which a is not  zero. The graph of a quadratic function is a curve called a parabola. Parabolas can open up or down and vary in "width" or "steepness", but they all have the same U shape.  

To find (f-g)(x), we must subtract g(x) from f(x):

(f-g)(x) = f(x) - g(x)

We already know that f(x) = x-9 and g(x) = 3x² - 2x + 5, so we can substitute them into the equation above:

(f-g) (x) = (x-9) - (3x² - 2x + 5)

Now we can simplify by dividing the negative sign by the second term:

(f-g)(x) = x - 9 - 3x² + 2x - 5

Combining like terms, we get:

(f-g)(x) = -3x² + 3x -14

Therefore, the function (f-g)(x) is -3x² + 3x - 14 in standard form.

Learn more about Quadratic function here

https://brainly.com/question/18958913

#SPJ1

Answer:

X = 26

Step-by-step explanation:

3^3 + 5^2 =2x

27 + 25 = 2x

52 = 2x

Divide by 2

X = 26

Answer:

J

Step-by-step explanation:

the constant of proportionality is the slope of the line

m = \(\frac{rise}{run}\) = \(\frac{6}{1}\) = 6 [ using the point (1, 6 ) ]

then constant of proportionality = 6

Answer: x = -5

Step-by-step explanation:

4−2(x+7)=3(x+5)4-2(x+7)=3(x+5)Simplify 4−2(x+7)4-2(x+7).Tap for more steps...−2x−10=3(x+5)-2x-10=3(x+5)Simplify 3(x+5)3(x+5).Tap for more steps...−2x−10=3x+15-2x-10=3x+15Move all terms containing xx to the left side of the equation.Tap for more steps...−5x−10=15-5x-10=15Move all terms not containing xx to the right side of the equation.Tap for more steps...−5x=25-5x=25Divide each term in −5x=25-5x=25 by −5-5 and simplify.Tap for more steps...x = −5

For this expression, the variables are equal to:

An expression is a mathematical equation which shows the relationship existing between two or more numerical quantities or variables.

Given the following expression:

\(\sqrt[4]{15^{7} }\)

From the law of indices, we have:

\(\sqrt[c]{a^{b} } =a^{\frac{b}{c} } \\\\\sqrt[4]{15^{7} } =15^{\frac{7}{4} }\)

For this expression, the variables are:

Read more on expressions here: https://brainly.com/question/12819629

#SPJ1

Answer: A = 15, B = 7, C = 4, I got it right

:)

Answer:

D

Step-by-step explanation:

Answer:

Step-by-step explanation:

you gotta multiply the mins which is 40 by 60 which is 2, 400 meters per hour

Step-by-step explanation:

please mark me as brainlest

The two most generic and widely used valuation multiples in finance and investment analysis are the price-to-earnings (P/E) ratio and the enterprise value-to-earnings before interest, taxes, depreciation, and amortization (EV/EBITDA) multiple.

1. Price-to-Earnings (P/E) Ratio: The P/E ratio is calculated by dividing the market price per share of a company's stock by its earnings per share (EPS). It provides a measure of how much investors are willing to pay for each dollar of earnings generated by the company.

A high P/E ratio suggests that investors have high expectations for future growth and are willing to pay a premium for the stock. On the other hand, a low P/E ratio may indicate that the stock is undervalued or that investors have low expectations for future growth.

2. Enterprise Value-to-EBITDA (EV/EBITDA) Multiple: The EV/EBITDA multiple is calculated by dividing the enterprise value (EV) of a company by its earnings before interest, taxes, depreciation, and amortization (EBITDA).

The EV is the total market value of a company's equity and debt, minus its cash and cash equivalents. EBITDA represents the company's operating earnings before accounting for interest, taxes, depreciation, and amortization.

The EV/EBITDA multiple is commonly used in evaluating the valuation of companies, especially in the context of mergers and acquisitions. It provides a measure of a company's overall value relative to its earnings, without being affected by capital structure or tax considerations.

Both the P/E ratio and EV/EBITDA multiple are widely used because they are relatively easy to calculate and understand. However, it's important to note that these multiples have limitations and should be used in conjunction with other valuation methods and qualitative analysis to make informed investment decisions.

To know more about valuation methods refer here:

https://brainly.com/question/30478023#

#SPJ11

Answer:

$6

Step-by-step explanation:

Let x be the amount a ticket costs.

35 - 4x = 11

4x = 24

x = 6

Each basketball ticket costs $6.

The first one is C

The second one is YES

To get equation b from a, you have to divide by three, which is the non zero constant.

Both equations do give the same answer because if you divide first one(a) by 3, you will end up with the second(b).

Hope this helps

When you are doing calculations, you can usually tell when you need to change base by looking at the problem. If the problem includes fractions, a base other than 10 may be more efficient. If the problem includes exponents, a base other than 10 may be necessary.

When working with numbers, it is important to know what base the numbers are in in order to correctly perform calculations. The base of a number is the number of digits used to express it, meaning that the base of a number can range from base 2 (binary) to base 36 (base 36 uses the numbers 0-9 and the letters A-Z).

Changing the base of a number can be helpful when dealing with fractions, exponents, and other complex calculations. To change the base of a number, divide the number by the base and then divide the remainder by the base, continuing to divide until the remainder equals 0.

Learn more about complex calculations: https://brainly.com/question/14344386

#SPJ4

Answer:

only mathematics = 20

only accounting = 10

mathematics and accounting = 16

All = 46

Step-by-step explanation:

please make my answer as brainelist

From the histogram, we can see that there are 4 outcomes in which three heads appear. Therefore, the probability that three heads will appear on any toss is 4/16 = 0.25.

Consider the toss of four coins. There are 24 possible outcomes of a single toss. Develop a histogram of the number of heads (one side of the coin) that can appear on any toss. Does it look like a normal distribution? Should this be expected? What is the probability that three heads will appear on any toss?Solution:When four coins are tossed, there are 16 possible outcomes.

Each outcome has an equal probability of 1/16 of occurring. A histogram of the number of heads that can appear on any toss is shown below:Based on the histogram, the probability of getting 0 heads or 4 heads is 0.375, while the probability of getting 1 head or 3 heads is 0.25, and the probability of getting 2 heads is 0.125.

The histogram does not look like a normal distribution. This is because a normal distribution has a bell-shaped curve, which is not the case with this histogram. This is because there are a finite number of possible outcomes, and the probabilities of these outcomes are not normally distributed.

Thus, the histogram is not expected to look like a normal distribution .The probability that three heads will appear on any toss is the sum of the probabilities of the outcomes in which three heads appear.

for such more questions on  probability

https://brainly.com/question/13604758

#SPJ11

Answer:

I believe its the 1st answer.

George's dog is approximately 32.41 meters away from its crate, if it ran 22 meters, turned and ran 11 meters, and then turned 120° to face its crate.

To determine the distance from George's dog to its crate after the described movements, we can use the concept of a triangle and trigonometry.

The dog initially runs 22 meters, then turns and runs 11 meters, forming the two sides of a triangle. The third side of the triangle represents the distance from the dog's final position to the crate.

To find this distance, we can use the Law of Cosines, which states that in a triangle with sides a, b, and c and angle C opposite side c, the equation is c² = a² + b² - 2abcos(C).

In this case, a = 22 meters, b = 11 meters, and C = 120°. Plugging these values into the equation, we have

c² = 22² + 11² - 2(22)(11)cos(120°).

Evaluating the expression, we get

c ≈ 32.41 meters.

To learn more about distance click on,

https://brainly.com/question/31954234

#SPJ4

(a) Isla's trading cards are 125% of Lily's trading cards.

(b) Lily's trading cards are 80% of Isla's trading cards.

Given that,

There are 225 trading cards and Lily has 180 trading cards.

To calculate the percentage of Isla's trading cards compared to Lily's,

We can use this formula:

⇒ Isla's trading cards / Lily's trading cards x 100%

Plugging in the values we get:

⇒ (225 / 180) x 100% = 125%

Therefore,

Isla's trading cards are 125% of Lily's trading cards.

b) To calculate the percentage of Lily's trading cards compared to Isla's, we can use the formula:

⇒ Lily's trading cards / Isla's trading cards x 100%

Plugging in the values we get:

(180 / 225) x 100% = 80%

Therefore,

Lily's trading cards are 80% of Isla's trading cards.

Learn more about the percent visit:

https://brainly.com/question/24877689

#SPJ1

Answer: 12/18

Step-by-step explanation:

For a quick explanation, all you need to do is multiply 1/6 by 6 to get 1 whole and do the same to 2/3 so it’s proportional again.

The number of cups of water she needs to mix is 4.

Given that,

Based on the above information, the calculation is as follows:

\(= \frac{2}{3} \div \frac{1}{6} \\\\= \frac{2\times 6}{3\times 1 }\)

= 4

Learn more: brainly.com/question/17429689

Answer:

p0000

Step-by-step explanation:

Line segment is a a measurable part of a line that consists of two points, called endpoints.

a coordinate system is a system that uses one or more numbers, or coordinates, to uniquely determine the position of the points or other geometric elements on a manifold such as Euclidean space.

Given that measurable part of a line that consists of two points, called endpoints is a line segment.

A line segment is a part of a straight line that is bounded by two distinct end points, and contains every point on the line that is between its endpoints.

Hence, line segment is a a measurable part of a line that consists of two points, called endpoints.

To learn more on Coordinate Geometry click:

https://brainly.com/question/18269861

#SPJ1

Answer:

1,000 + 200 + 50 + 6

Usually the one with the more vertical line would be steeper.

Answer:

Ship one is closer to the coast guard

The equation's remaining constant is the answer if the variable term eventually equals zero and the equation can be said to be true.

By isolating the variable on one side of the equation, we can arrive at a numerical value that satisfies the equation. However, in rare circumstances, the variable term may become zero while the equation is being simplified.

When a common factor is eliminated or an expression containing the variable is simplified, this can take place. The equation has a solution, and that solution is the constant value left over if, after removing the variable element, we arrive at a true assertion.

This is due to the equation's ability to be simplified to a declaration of equality between two constants if the variable term is zero. The constant value is the answer to the equation if the aforementioned assertion is accurate.

Learn more about equations here:

https://brainly.com/question/29538993

#SPJ4