Mrs. Cravens did an experiment where she recorded the number of minutes each student studied and the score the student made on the test. She calculated a correlation coefficient of r = 0.84. Which best describes the association between the number of hours spent studying and the test score, based on Mrs. Craven's findings?

A: Weak Negative
B: Strong Negative
C: Weak Positive
D: Strong Positive

If the scale upon which points a, b, c, and d are shown is an ordinal scale, we can meaningfully say that the order of the points represents the order of the underlying variable being measured.

When using an ordinal scale, the order of the points (a, b, c, and d) represents the relative ranking or ordering of the underlying variable being measured. This means we can determine which point is higher or lower in the ranking. For example, if the variable being measured is satisfaction level, we can say that point "c" represents higher satisfaction than point "a" or "b." However, with an ordinal scale, we cannot make precise quantitative comparisons between the points or determine the exact magnitude of the differences between them. The scale only allows us to establish the relative order or ranking of the points.

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If we chose different intervals for binning data in a frequency table can affect the level of detail, the frequency of values, and the distribution of values in each bin. It's important to choose an interval size that is appropriate for the dataset and provides meaningful insights into the data.  Here are some ways in which the frequency table could be affected.

Choosing different intervals will result in a different number of bins, which affect the detail. For example, a smaller interval size will result in more bins, which may give a more detailed view of the data.

The frequency of values in each bin will change depending on the interval size. For example, if we have a dataset with values from 0 to 100, and we choose an interval size of 10, we will have 10 bins, each with a frequency count of values falling into that range.

The distribution of values in each bin may vary depending on the interval size. For example, if we have a dataset with values ranging from 0 to 100 and we choose an interval size of 5, we may get a more detailed view of the distribution of values.

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For the given condition- If the earth reversed its direction of spin. Then,

The Earth is constantly in motion. Every day, the Earth completes one full rotation around its axis. The axis is an imaginary line that runs through the earth from the North Pole to the South Pole.

Some key features regarding the Earth's rotation are-

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The complete question is -

If you are standing at the Earth's North Pole.

For this question choose as many answers as are correct. if the earth reversed its direction of spin

The Greatest Common Factor (GCF) of \(24x^{5}y^{3}z^{4}\) and \(36x^{3}y^{2}z^{5}\) is 12\(12x^{3}y^{2}z^{4}\)

The GCF (Greatest Common Factor) of two or more numbers is the greatest number among all the common factors of the given numbers

The common factors of \(24x^{5}y^{3}z^{4}\) are 1,2,3,4,6,8,12,24,\(x^{5} y^{3} z^{4}\)

The common factors of \(36x^{3}y^{2}z^{5}\)  are 1,2,3,4,6,9,12,18,36\(x^{3}y^{2}z^{5}\)

Hence,

The GCF of \(24x^{5}y^{3}z^{4}\) and \(36x^{3}y^{2}z^{5}\) is 12\(12x^{3}y^{2}z^{4}\)

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Answer:

1. I heard this question before is it 7/8 divided 1/8

2. I don’t even understand the last one if you put your number in the different place I would know... ;(

Step-by-step explanation:

Answer:

Does the answer help you?

Please choose my answer as a brainliest answer and please rate.

It take a few minutes to solve your question.

Answer:

Linear

Step-by-step explanation:

Linear it forms a straight line when it graphed. It also has a slope and a constant.

Dr. Veniegas used random sampling  in her research, she can make the reasonable assumption that the sample is representative of the population, and the findings can be generalized to the larger population.

Random sampling is a method of selecting a subset of individuals from a larger population in such a way that each individual has an equal chance of being included in the sample. By employing random sampling, Dr. Veniegas aims to ensure that the sample is representative of the population, meaning that the characteristics and diversity within the sample reflect those of the larger population.

When random sampling is properly conducted, it helps to minimize biases and increase the likelihood that the findings from the sample can be generalized to the entire population. This assumption holds under the premise that the random sample accurately represents the characteristics, behaviors, or attitudes of the larger population.

Dr. Veniegas used random sampling in her research, she can reasonably assume that the findings and conclusions drawn from the sample can be extended or generalized to the larger population with a certain level of confidence.

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The figure which is like a long oval can be decomposed to two semicircles and a rectangle so as to find the area.

Given a long oval and two lines are drawn where the sides are straight to form right angles.

We are required to find the way how we can decompose the composite figure to determine its area.

Area means the amount of space occupied by a two dimensional shape or object. The area of a figure can be decomposed to smaller figures so as to find the area.

The composed figure can be decomposed to two semicircles and a rectangle so as to find the area.

Hence the composite figure can be decomposed to two semicircles and a rectangle so as to find the area.

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Answer:

a

Step-by-step explanation:

Answer:

cos(a + b) = \(\frac{1}{12}(1-2\sqrt{30})\)

Step-by-step explanation:

cos(a + b) = cos(a).cos(b) - sin(a).sin(b) [Identity]

cos(a) = \(-\frac{1}{3}\)

cos(b) = \(-\frac{1}{4}\)

Since, terminal side of angle 'a' lies in quadrant 3, sine of angle 'a' will be negative.

sin(a) = \(-\sqrt{1-(-\frac{1}{3})^2}\) [Since, sin(a) = \(\sqrt{(1-\text{cos}^2a)}\)]

         = \(-\sqrt{\frac{8}{9}}\)

         = \(-\frac{2\sqrt{2}}{3}\)

Similarly, terminal side of angle 'b' lies in quadrant 2, sine of angle 'b' will be  negative.

sin(b) = \(-\sqrt{1-(-\frac{1}{4})^2}\)

         = \(-\sqrt{\frac{15}{16}}\)

         = \(-\frac{\sqrt{15}}{4}\)

By substituting these values in the identity,

cos(a + b) = \((-\frac{1}{3})(-\frac{1}{4})-(-\frac{2\sqrt{2}}{3})(-\frac{\sqrt{15}}{4})\)

                = \(\frac{1}{12}-\frac{\sqrt{120}}{12}\)

                = \(\frac{1}{12}(1-\sqrt{120})\)

                = \(\frac{1}{12}(1-2\sqrt{30})\)

Therefore, cos(a + b) = \(\frac{1}{12}(1-2\sqrt{30})\)

Answer:

x+y

Step-by-step explanation:

#boys+#girls=#children

Answer: a = -3.25, b = -4, c = 0.5 and d = -4

Step-by-step explanation:

To find the coefficient of a cubic function, we can use the values in the given table to set up a system of equations and then solve for the unknowns.

Here is the system of equations we can set up using the values in the table:

y = ax^3 + bx^2 + c*x + d

0 = 0a + 0b + 0c + d

-4 = 1a - 4b + 1c + d

-26 = 8a - 4b + 2c + d

-48 = 27a - 4b + 3c + d

We can then solve this system of equations using matrix operations or Cramer's rule.

a = -26/8 = -3.25

b = -4

c = -26-8a = -26+26.5 = 0.5

d = -48-27a-4b-3c = -48+91.75-44-30.5 = -4

Therefore, the coefficient a = -3.25, b = -4, c = 0.5 and d = -4 for the cubic function y = ax³ + bx² + cx+d

It's important to note that this method of solving a system of equations is the most common way but not the only way to get the coefficients in this case.

The maximum profit is $923.44 which is gotten when 83 T shirts are produced.

Given the function:

Profit = Revenue - Cost

Profit (P) = 100x - (0.6x²+0.52x+3200)

P = -0.6x² + 99.48x - 3200

The maximum profit is at dP/dx = 0, hence:

dP/dx = -1.2x + 99.48

0 = -1.2x + 99.48

1.2x = 99.48

x = 82.9

x ≅ 83

The maximum profit is at x = 83, hence:

P = -0.6(83)² + 99.48(83) - 3200

P = 923.44

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Answer:

x=14

Step-by-step explanation:

This is asking for the ratio of A to B.

The x-10 is 1.

The 28 is 7.

Find the scale factor by executing 28/7=4.

So, you would want polygon A to be 4 in order to be proportional to polygon B.

Now, you can just guess and check that 14-10=4

Or, you can set up the equation as follows: x-10    =    4

                                                                         +10        +10

                                                                           x      =   14 is your answer.

Answer:

Step-by-step explanation:

The constant is 6

Hope this helps!

Answer:

21000 meters

Step-by-step explanation:

100R + 300B

100(30) + 300(60)

3000 + 18000 = 21000

Answer:

21,000 meters

Step-by-step explanation:

For an exponential function  \(f(x) = 3^{-x}2\) as x goes to infinity, f(x) goes to zero.

We have been given an exponential function \(f(x) = 3^{-x}2\)

We need to check the end behavior of f(x) as x goes to infinity.

Consider,

\(\lim_{x \to \infty} f(x)\\\\= \lim_{x \to \infty} 3^{-x}2\\\\=2\times \lim_{x \to \infty} 3^{-x}\\\\=2\times 3^{-\infty}\\\\=2\times 0\\\\=0\)

This means, x \(\rightarrow\) infinity, f(x) goes to 0

As x goes to infinity, f(x) goes to zero.

Therefore, for an exponential function  \(f(x) = 3^{-x}2\) as x goes to infinity, f(x) goes to zero.

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To find the maximum area of the lawn that can be watered by the sprinkler, we can use the formula for the area of a circle:

A = πr^2

Given that the radius of the sprinkler's spray is 22ft, we can substitute this value into the formula:

A = 3.14 * (22)^2

A ≈ 3.14 * 484

A ≈ 1519.76

Rounded to the nearest tenth, the maximum area of the lawn that can be watered by the sprinkler is approximately 1519.8 ft^2.\(\huge{\mathcal{\colorbox{black}{\textcolor{lime}{\textsf{I hope this helps !}}}}}\)

♥️ \(\large{\textcolor{red}{\underline{\texttt{SUMIT ROY (:}}}}\)

The suggestion to the unit staff by mediator that a group agreement needed to be made so meetings could become more productive and efficient.

By suggesting the need for a group agreement,

The mediator is proposing that the unit staff establish a set of guidelines or norms that will govern their meetings.

This agreement would outline expectations, rules, and protocols to ensure that meetings are conducted in a manner.

That promotes productivity and efficiency.

Having a group agreement for meetings can have several benefits.

Firstly, it helps establish a shared understanding among team members regarding the purpose, structure, and desired outcomes of meetings.

This clarity can reduce confusion and ensure that everyone is on the same page.

Secondly, a group agreement can address common issues that hinder productivity and efficiency in meetings.

For example, it can include guidelines for starting and ending meetings on time, staying focused on the agenda.

Encouraging active participation, respecting different viewpoints, and minimizing interruptions.

By having these agreed-upon rules, the group can prevent time wastage, tangents, or unproductive behaviors that might derail discussions.

Moreover, a group agreement fosters a sense of ownership and accountability among the unit staff.

When team members actively contribute to creating the agreement.

They are more likely to adhere to its principles and hold themselves and others accountable for meeting etiquette.

Overall, the goal of establishing a group agreement for meetings is to create an environment that encourages.

Effective communication, collaboration, and decision-making.

It helps ensure that meetings are conducted in a manner that maximizes the use of time.

Promotes active engagement, and ultimately leads to more productive and efficient outcomes.

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The given question is incomplete, I answer the question in general according to my knowledge:

The mediator suggested to the unit staff that a group agreement needed to be made so meetings could become_____.

Ashley and her four friends will need 5 hours and 19.57 minutes to make 1575 bags if Ashley takes 2/3 of a minute and each friend takes 75% longer.

The first sexagesimal fraction of an hour, or one-fifth of an hour, or 60 seconds, is known as the minute. On rare occasions, due to leap seconds, a minute in the UTC time zone has 61 seconds (A negative leap second might be inserted, producing a minute of 59 seconds; however, this has never occurred in more than 40 years under this system.) The minute can be used with SI units even if it isn't a SI unit. Minute or minutes is represented by the SI unit min (without a dot). Occasionally, people would slangy refer to minutes of time by the prime symbol.

Calculations:

For a bag, Ashley needs about 2/3 of a minute.

= Ashley prepare bag in 1 minute = 3/2  

Her friends takes 75%  Longer to prepare a bag

time taken by her friends =  2/3  + (75/100)(2/3)

= (2/3)( 1  + 3/4)

= (2/3)(7/4)

= 7/6  Minutes

Her one friend prepare bag in 1 minute =  6/7

Bag prepared by Ashley & her 4 friend in 1 Minute

=  3/2  +  4*6/7

=  (21 + 48)/14

= 69/14  Bag

69/14   Bag prepared in 1 minute

1 Bag prepared in    14/69   minutes

1575  bags prepared  in   1575  * 14/69

= 319.57 minutes

= 5 hrs  19.57 Minutes

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Answer:

  -4.697 in/s

Step-by-step explanation:

You want to know the rate of change of radius of a cone 11 inches high with a radius of 5 inches and a volume that is decreasing at the rate of 541 cubic inches per second.

The volume of a cone is given by ...

  V = π/3r²h

The rate of change is found by implicit differentiation:

  V' = (π/3)((2rr')h +r²h')

Here, the height is constant, so h' = 0. Solving for r', we find ...

  r' = 3V'/(2πrh)

Using the given values of V', r, and h, we find the rate of change of radius to be ...

  r' = 3(-541 in³/s)/(2π(5 in)(11 in)) = -1623/(110π) in/s ≈ -4.69652 in/s

The radius is decreasing at about -4.697 inches per second.

__

Additional comment

The initial radius of the cone is irrelevant to the problem, since we want to know the rate of change at a specific different radius. Whether the cone is inverted or not is also irrelevant to its volume.

The probability of randomly picking an orange from Jeff's box of fruit is 0.25 or 25%.

To determine the probability of picking an orange from Jeff's box of fruit, we need to first understand the concept of probability. Probability is the measure of the likelihood of an event occurring. It is expressed as a number between 0 and 1, with 0 indicating that the event is impossible and 1 indicating that the event is certain.

In this case, we know that Jeff has a box of fruit, and we are interested in the probability of picking an orange. To calculate this probability, we need to know the total number of fruits in the box and the number of oranges.

Assuming that Jeff's box contains a variety of fruits, we can estimate the total number of fruits in the box. Let's say there are 20 fruits in total. Now, we need to determine the number of oranges in the box. Let's say there are 5 oranges in the box.

To calculate the probability of picking an orange, we can use the following formula:

Probability of picking an orange = Number of oranges / Total number of fruits

Plugging in our numbers, we get:

Probability of picking an orange = 5 / 20

Simplifying, we get:

Probability of picking an orange = 0.25

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The growing animal gained a weight of +1 pound.

A positive signed number is used to represent a gain or increase in something, while a negative signed number is used to represent a loss or decrease. In this case, the growing animal gained weight, so a positive signed number should be used to represent the weight change.

The number +1 is a positive number that represents an increase of 1 unit. Therefore, +1 pound would be the appropriate signed number to represent the weight change of the growing animal.

It's important to note that the plus sign is not always necessary when writing a positive number, as the positive sign is implied when no sign is present. However, in cases where the signed number might be confused with a different quantity (such as a weight), it can be helpful to include the plus sign to make the meaning clear.

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Answer:

1.3333

Step-by-step explanation:

pls mark brainliest

Answer:

16

Step-by-step explanation:

4 hours 32 dollars

half of 32 is 16

Answer:

A

because if you divide them