Please help and thank you for helping me out

a. The possible values of the random variable X are integers from 1 to n, where n is the total number of different pages on the website.

b. The random variable X is discrete.

b. The possible values of the random variable Y are all non-negative real numbers, that is, Y ≥ 0.

b. The random variable Y is continuous.

a. a. Since a customer can only hit one page at a time, the number of pages they hit in a single visit can only be an integer from 1 to n, where n is the total number of pages on the website.

Therefore, the possible values of the random variable X are X = {1, 2, 3, ..., n}.b. A random variable is discrete if it can only take on a countable number of values, which is true for X. Therefore, the random variable X is discrete.

b. The total time a customer spends on the website can be any non-negative real number. Therefore, the possible values of the random variable Y are Y ≥ 0. Since Y can take on any value within a range, it is a continuous random variable.

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Answer:

m=11

Step-by-step explanation:

m-8=3

m=3+8

m=11

Answer:

1/3

Step-by-step explanation:

Answer:

6/7, c, d

Step-by-step explanation:

the answer is 6/7, c, d

Answer:

y = -1/5x + 14

Step-by-step explanation:

In order to write the easiest and most common equation of the line (or, as the question puts it, a function that relates x to y), y = mx + b, you need to find the slope (m) and the y-intercept (b). For the slope, pick any two points and take their change in x and divide it by their change in y. For example, for the points (10,12) and (20, 10) in the table, you'd do (10-12)/(20-10) = -2/10 = -1/5, so your slope is -1/5. This would make your "placeholder equation" y = -1/5x + b Next, you find the b term by plugging any point into your "placeholder equation" and solving for b. For example. 10 = -1/5(20) + b, which is the same as 10 = -4 + b, and add 4 to both sides to find that b is 14.

9514 1404 393

Answer:

  6.302×10^7 kg

Step-by-step explanation:

Since we want to find the difference in mass, we need to have the same exponent on both numbers. For that purpose, it is convenient to change the representation of the train's mass to 0.998×10^7 kg.

The carrier has more mass by the amount of ...

  7.3×10^7 -0.998×10^7 = (7.300 -0.998)×10^7 = 6.302×10^7 . . . kg

_____

Your (scientific or graphing) calculator or a spreadsheet can figure this for you and give you the scientific notation display.

As per the given values, the value of α in this common base connection is 22.5.

IC = 0.9 mA

IB = 0.04 mA

A base is the arrangement of digits or letters and digits that a counting system employs to represent numbers. The collector current to base current ratio in a common base connection is known as the current gain, and is usually bigger than ten. It is required to divide IC by IB to obtain the value of α

Calculating the value of α -

α = IC / IB

Substituting the given values in the formula:

= 0.9 / 0.04

= 22.5

Therefore, after solving it is found that the value of α in this common base connection is 22.5.

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Answer:

8.99999999998

Step-by-step explanation:

45:115::_:23

The ratio between 45 and 115 is 2.55555555556 so 23 divied by that is 8.99999999998

The probability to obtain the sum of two rolled dice as a multiple of 6 or a multiple of 4 is 13/36.

When comparing the likelihood of an outcome to all other possible outcomes, we use a sort of ratio known as probability.

Given that a dice is rolled twice. Sum of the two rolls has following possibilities,

2,3,4,5,6,7,8,9,10,11,12

A multiple of 6 is obtained when the sum is either 6 or 12.

Sum of 6 is obtained when the two rolls are (1,5) , (2,4) , (3,3), (4,2) , (5,1)

Probability for each is 1/36. Therefore total probability to obtain sum of 6 is 5/36.

Sum of 12 is obtained only when the two rolls (6,6).

Probability to obtain sum of 12 is therefore 1/36.

Similarly for a sum of 4, the probability is 3/36.

For a sum of 8, the probability is 4/36.

Therefore the required probability is the sum of above calculated probabilities,

Required probability = 5/36 + 1/36 + 3/36 + 4/36 = 13/36

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The number of batches of cookies Michael can make is x<12. Therefore, option 3 is the correct answer.

Given that, Michael is making cookies. Each batch uses 3 cups of flour.

Inequalities are the mathematical expressions in which both sides are not equal. In inequality, unlike in equations, we compare two values. The equal sign in between is replaced by less than (or less than or equal to), greater than (or greater than or equal to), or not equal to sign.

Let the number of batches of cookies be x.

Now, the inequality to represent the given situation is

3x+5<41

Subtract 5 on both sides of inequality, we get

3x<36

Divide 3 on both sides of inequality, we get

x<12

The number of batches of cookies Michael can make is x<12. Therefore, option 3 is the correct answer.

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Answer:

i think base. i might be wrong.

Step-by-step explanation:

Answer:

Its period................

Yes, the radiometrically dated basaltic clasts within the conglomerate can be considered a reliable age for the conglomerate.

The reliable age of conglomerate basaltic clasts radiometrically dated to 50 million years ago is the Eocene era.

The sedimentary rock called conglomerate has basaltic clasts embedded in it that have been radiometrically dated to 50 million years ago. Therefore, this is a reliable age for the conglomerate because the basaltic clasts would have been derived from the volcanoes that were active at the time, which would have deposited ash and pyroclastic material in the surrounding area. This means that the conglomerate itself must have been formed sometime later after the volcanic activity, during the Eocene era.

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Answer: C. The interquartile range (IQR) for town A, 15°, is less than the IQR for town B, 20°

Step-by-step explanation:

Picture

Answer:

2 days

Step-by-step explanation:

I figured out what 1/4 of 8 was by taking 2 and multiplying it by 4. You can also get this same answer by dividing 8 by 4.

Answer:

The linear equation to represent the amount of money m that Mark has earned this summer after working h hours at the grocery store is:

Step-by-step explanation:

Mark has already earned some amount x. Lets find it using the number of hours worked and the total amount after this:

This amount represents an initial value or the y-intercept of the line and the payment per hour represents the slope of same line.

We know the equation of line in slope-intercept form:

Plug in the values and variables to get the linear equation for the earned amount:

Mark's m earned this summer after working h hours at the grocery store is represented by the linear equation: m = 9.5h + 140.

Given

Earning per hour = $9.50,

Worked hours = 16,

Total earning = $292,

Mark has earned some amount initially for mowing lawns.

Linear equation of amount of money m after working h hours

Mark has already earned some amount x.

Lets find it using the number of hours worked and the total amount after this:

16 × 9.50 + x = 292

Simplifying the above equation then we get,

152 + x = 292

x = 292 - 152

x = 140

This amount represents the line's initial value or y-intercept, and the payment per hour represents the slope of the same line.

The slope-intercept equation of a line is as follows:

y = mx + b, where y is the line, m is the slope, and b is the y-intercept

To obtain the linear equation for the earned amount, enter the values and variables as follows:

∴ m = 9.5h + 140

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Answer:

.....?....................

The 90% confidence interval for the mean length of stay for patients with abdominal surgery is [5.64, 5.86].

The formula for the confidence interval is given by: \($CI=\bar{X}\pm Z_{\alpha/2} \times \frac{S}{\sqrt{n}}$\)

Given data:Sample size, n = 2121,Sample mean, \($\bar{X}$\) = 5.75,Sample standard deviation, S = 1.11 Confidence interval, CI = 90%

Now, we need to find the value of Zα/2 from the Z-table.

The value of α/2 is given by 1-90/100 = 0.1.

Therefore, α/2 = 0.05.From the Z-table, we can find the Z-value corresponding to 0.05, which is 1.645.

Substituting all these values in the formula, we get:\(\[\begin{aligned}CI&=\bar{X}\pm Z_{\alpha/2} \times \frac{S}{\sqrt{n}}\\&=5.75\pm 1.645 \times \frac{1.11}{\sqrt{2121}}\\&=5.75\pm 0.106\\&=[5.64, 5.86]\end{aligned}\]\)

Therefore, the 90% confidence interval for the mean length of stay for patients with abdominal surgery is [5.64, 5.86].

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Answer:

letter B

I think it's help

Answer:

x = ±3 sqrt(2)

Step-by-step explanation:

x^2 = 18

Take the square root of each side

sqrt(x^2) = sqrt(18)

x = ± sqrt(18)

x =±sqrt(9*2)

x = ±sqrt(9) sqrt(2)

x = ±3 sqrt(2)

The statement "the San Gabriel Mountains are 60 miles lengthy, 24 miles wide, and more or less 10,000 feet high (at their highest)" is true.

The San Gabriel Mountains are a mountain range positioned in Southern California, walking east-west across los angeles County. They stretch for approximately 60 miles from the Cajon bypass inside the east to the San Fernando Valley inside the west and are around 24 miles wide.

The best peak within the range is Mount San Antonio, also referred to as Mount Baldy, that is kind of 10,000 ft high. The San Gabriel Mountains are a famous destination for out of doors sports consisting of hiking, camping, and snowboarding, and are an vital supply of water for the los angeles place.

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We need to know about z-score to solve the problem. The probability that x will be less than 55 is 0.84

A z-score tells us how many standard deviations away an individual data value falls from the mean. Once we find the z-score we can get the probability from the z-table. In the given question we know that X is normally distributed random variable with mean 50 and standard deviation 5, we need to find out the probability that x will be less than 55.

z-score= x-μ/σ=55-50/5=1

In z-table , the probablity for z-score=1 comes to 0.84

Therefore the probability that x will be less than 55 is 0.84.

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The vertex form is y= 1/4( x + 2)² - 15/2.

There are various ways to represent a parabola's equation, including standard form, vertex form, and intercept form.

A parabola's typical form is as follows:

y = ax² + bx+ c

Here, real numbers (constants) a, b, and c are present, with a≠ 0. A point on the parabola is represented by the variables x and y, respectively.

Given:

4y–4x+26=x²

Now,

4y–4x+26=x²

4y = x²+ 4x - 26

y= 1/4 x² + x - 13/2

Now, h= -b/2a

h= -1/2(1/4)

h= -2

k= 1/4(4) - 2 - 13/2

k= -15/2

So,  vertex form of equation is

y= a(x-h)² + k

y= 1/4( x + 2)² - 15/2

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Answer:

Isosceles triangle

Step-by-step explanation:

Thorough explanation: Through the angles in the triangle ABC.

First, observe that angle ACD = 50 degrees (given)

Since lines AB and DE are parallel to each other,

angle BAC = angle ACD = 50 degrees (by the property of alternate angles)

It is also given that angle ABC = 80 degrees.

Since ABC is a triangle, the sum of the three angles must add up to 180 degrees.

Angle BAC + Angle ABC + Angle ACB = 180 degrees

50 + 80 + Angle ACB = 180

Angle ACB = 180 - 50 - 80

                   = 50 degrees

Since two of the angles, angles ACB and BAC are the same at 50 degrees, triangle ABC is an isosceles triangle. (With sides AB and BC equal)

The equation representing the relation of x and y for the given values and condition is given by option c. y = one-third x .

x and y vary directly,

This implies,

y ∝x

⇒y = kx

where k is the constant of proportionality.

Using the given values x = 18 and y = 6a, we can solve for k,

⇒6a = k(18)

⇒k = 6a/18

⇒k = a/3

Substituting this value of k into the equation y = kx, we get,

⇒y = (a/3)x

We can simplify this equation as,

⇒y = (1/3)ax

Let us consider the value of a = 1.

Therefore, the equation that relates x and y when x and y vary directly for the values x = 18, y = 6a is  option c. y = (1/3)x.

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Answer:

4007400000

You move the decimal place to the right 9 places.

Step-by-step explanation:

The required distance around the earth (circumference) in standard form is 40,074,000,000.

A number system is described as a procedure of organizing to express digits. It is the mathematical notation for representing the numbers of a given set by using numbers or other characters in a uniform method. It delivers a special exhibit of every digit and defines the arithmetic structure.

Here,
The number 4.0074 x 10¹⁰ means 4.0074 multiplied by 10 to the power of 10. To convert this number to standard form, we simply need to move the decimal point 10 places to the right.

So the answer in standard form is:

40,074,000,000

Thus, the required distance around the earth (circumference) in standard form is 40,074,000,000.

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Check the picture below.

Answer:

12 or 24 apples.

Step-by-step explanation:

If you can divide the apples evenly among 4 children, then you can automatically divide them among 2 children (since 4 is a multiple of 2). Therefore, the possible number of apples that the box could contain are given by:

\(n_1 = 3*4 = 12\ apples\\n_2 = 3*4*2 = 24\ apples\)

The box could contain 12 or 24 apples.

Answer:

12 or 24 because they are divisable by 2 3 and 4

Step-by-step explanation:

Fill the bottles with a small amount of uncooked rice or uncooked lentils. Dry the bottles after cleaning to avoid water spots and moisture buildup inside the bottles.

Try the following steps to hand clean your milk glass and creamer glass bottles and remove smudges and stains from the inside: Fill the bottles halfway with warm water and a dash of dish soap.

Remember to thoroughly dry the bottles after cleaning to avoid water spots and moisture buildup inside the bottles.

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We have to find the area of the region between y=x^(1/2) and y=x^(1/3) for 0≤x≤1.

To find the area of the region between y=x^(1/2) and y=x^(1/3) for 0≤x≤1, we have to integrate x^(1/2) and x^(1/3) with respect to x. That is, Area = ∫0¹ [x^(1/2) - x^(1/3)] dx= [2/3 x^(3/2) - 3/4 x^(4/3)] from 0 to 1= [2/3 (1)^(3/2) - 3/4 (1)^(4/3)] - [2/3 (0)^(3/2) - 3/4 (0)^(4/3)]= 0.2857 square units

Therefore, the area of the region between y=x^(1/2) and y=x^(1/3) for 0≤x≤1 is 0.2857 square units. Note: The question  but the answer has been provided in the format requested.

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Since the parabola opens upwards and the vertex is the minimum point, f(x) is greater than 0 (positive) for all x values except at x = 3, where it is equal to 0.

To determine where the quadratic function f(x) = x^2 - 6x + 9 is equal to 0, we need to find the x-values that satisfy the equation f(x) = 0.

We can solve this quadratic equation by factoring, completing the square, or using the quadratic formula.

Using factoring:

x^2 - 6x + 9 = 0

(x - 3)(x - 3) = 0

(x - 3)^2 = 0

By factoring, we see that the equation is a perfect square trinomial, and the factor (x - 3) is repeated. Therefore, the only solution is x = 3.

So, f(x) = 0 at x = 3.

To determine where f(x) is greater than 0 or less than 0, we can analyze the shape of the quadratic curve. Since the coefficient of x^2 is positive, the parabola opens upwards, and the vertex represents the minimum point.

The vertex of the quadratic function f(x) = x^2 - 6x + 9 can be found using the formula x = -b/2a. In this case, a = 1 and b = -6.

x = -(-6) / 2(1)

x = 6/2

x = 3

The vertex is located at (3, f(3)).

Since the parabola opens upwards and the vertex is the minimum point, f(x) is greater than 0 (positive) for all x values except at x = 3, where it is equal to 0.

Therefore:

- f(x) > 0 for x ≠ 3

- f(x) = 0 at x = 3

Please note that I have assumed that the given quadratic function is f(x) = x^2 - 6x + 9, as the question does not specify the signs of the quadratic terms. If the signs are different, the results may vary.

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