What sampling method is used in the following examples. Is the method biased or not?
(NOT A MULTIPLE CHOICE)

a. A clothing manufacturing company manufacturing company divided its company divided its employees up by units, and then then they randomly selected three employees from each unit to represent the company at a convention in Las Vegas.

b. Mr. Yotsey put names of all students at his school on identical slips of paper in a box and distributed surveys to the students whose names he pulled.

Answer:

100 or 150 units of the product.

Step-by-step explanation:

R = x(1000-4x)

What is the value of x if R = 60,000?

x(1000-4x) = 60000

-4x^2 + 1000x = 60000

x^2 - 250x = -15000

x^2 - 250x + 15000 = 0

Factorize:

(x-100)(x-150) = 0

x-100 = 0 V x-150 = 0

x = 100 V x = 150

The correct answer is C. It is the graph of f(x) translated 11 units to the left.

The correct answer is:

C. It is the graph of f(x) translated 11 units to the left.

When we have a function of the form g(x) = f(x - a), it represents a horizontal translation of the graph of f(x) by 'a' units to the right if 'a' is positive and to the left if 'a' is negative.

In this case, g(x) = f(x - 11), which means that the graph of f(x) is being translated 11 units to the right. However, the answer options do not include this specific transformation. The closest option is option C, which states that the graph of g(x) is translated 11 units to the left.

The graph of f(x) = x is a straight line passing through the origin with a slope of 1. If we apply the transformation g(x) = f(x - 11), it means that we are shifting the graph of f(x) 11 units to the right. This results in a new function g(x) that has the same shape and slope as f(x), but is shifted to the right by 11 units.

Therefore, the correct answer is C. It is the graph of f(x) translated 11 units to the left.

for more such question on graph visit

https://brainly.com/question/19040584

#SPJ8

Answer:

D

Step-by-step explanation:

Answer:

The measure of CD is 46

Step-by-step explanation:

From the midpoint theorem, we have,

FG = (1/2)CD

so,

\(13+5x=(1/2)(-3x+52)\\So,\\2(13+5x)=-3x+52\\26+10x=-3x+52\\13x=52-26\\13x=26\\x=26/13\\x=2\)

Now,

\(CD = -3x+52\\since \ x=2\\we \ get\\CD=-3(2) +52\\CD=-6+52\\CD=46\)

Answer:

h. The data value 0.76 is a possible outlier.

b. The display is not symmetric and appears to be positively skewed.

d. The stem-and-leaf display shows that 0.45 is a good representative value for the data.

Step-by-step explanation:

STEM | LEAF

3 ___ | 4

3 ___ | 5, 6, 6, 7, 8

4 ___ | 0, 0, 0, 1, 1, 2, 2, 2, 2, 2, 3, 4

4 ___ | 5, 6, 6, 7, 8, 8, 9

5 ___ | 1, 4, 4

5 ___ | 5, 8

6 ___ | 1

6 ___ | 6, 6, 7, 8

7 ___

7 ___ | 6

The data point which seems a bit further out from the rest of the values : 0.76

0.45 is the median value and gives a reasonable representative value of the data.

Majority of the data accumulates on the left and this makes distribution positively skewed.

9514 1404 393

Answer:

  (a) (-∞, -8), (-5, -2), (2, 5)

  (b) -8, -2, 5

  (c) negative

  (d) 6

Step-by-step explanation:

(a) The function is increasing on intervals where the graph slopes upward left-to-right. Those are (-∞, -8), (-5, -2), and (2, 5).

__

(b) The local maxima are at the right end of each interval on which the function is increasing: -8, -2, 5.

__

(c) The function opens downward (∩), so has a negative leading coefficient.

__

(d) There are three local maxima and two local minima (left end of an increasing interval), so a total o 5 turning points. The degree of the polynomial is at least one more than this: 6.

A. The unit cost of the product follows a normal distribution with an expected value of ETB 305 and a standard deviation of ETB 5.

B. The expected value of the unit cost of the product is ETB 305 and the variance is ETB 25.

In order to calculate the standard deviation, follow the following steps:

1. Calculate the mean (average) of your data set.

2. For each data point, subtract the mean and square the result (the squared difference).

3. Sum all of the squared differences.

4. Divide the sum by the number of data points. This gives you the variance.

5. Take the square root of the variance to get the standard deviation.

Therefore, the correct answer is as given above

learn more about standard deviation: https://brainly.com/question/475676

#SPJ1

Therefore, sin(0) = -√305/41 when 0 is an angle in quadrant IV.

Trigonometry is a branch of mathematics that deals with the study of relationships between the angles and sides of triangles. It is used to solve problems in many fields, including engineering, physics, astronomy, and architecture. Trigonometry involves the use of functions such as sine, cosine, and tangent to relate the angles and sides of a right triangle. It also includes the study of trigonometric identities, equations, and graphs, as well as applications of trigonometry in real-world situations.

Here,

If 0 is an angle in quadrant IV, then cosine is positive and sine is negative. We can use the Pythagorean identity to find the value of sin(0):

sin²(0) + cos²(0) = 1

sin²(0) = 1 - cos²(0)

sin(0) = -√(1 - cos²(0))

substituting the given value of cos(0):

sin(0) = -√(1 - (4√47/41)²)

sin(0) = -√(1 - (16*47/41))

sin(0) = -√(1 - 736/41)

sin(0) = -√(305/41)

sin(0) = -(√305)/√(41)

To know more about trigonometry,

https://brainly.com/question/29002217

#SPJ1

Answer:Hope this helps

Step-by-step explanation:

Answer: 1 and a half batches

Step-by-step explanation: because 1/2 is the same as 2/4 so the half of two is 1 so if you add one to the 2/4 you get 3/4 and that is the same as 1 1/2 batches

The expression 5⁻¹³× 5⁵ × 2⁵ can be rewritten as 5⁻⁸ × 2⁵.

Exponentiation is the method of writing a number in terms of powers. This method is usually useful for writing larger numbers in an understandable and effective way.

For a number x, suppose x can be written as aᵇ, here 'a' is called the base and 'b' is called the exponent.

We have to write the expression 5⁻¹³× 5⁵ × 2⁵ in a form where each base comes only once.

This can be solved using one of the basic property of exponents as stated below:

xᵃ × xᵇ = xᵃ⁺ᵇ

That is, upon multiplying two exponents with the same base value, we can combine it and add the exponent values.

∴ 5⁻¹³× 5⁵ can be rewritten as 5⁻⁸.

So 5⁻¹³× 5⁵ × 2⁵ =  5⁻⁸ × 2⁵.

Hence the expression 5⁻¹³× 5⁵ × 2⁵ can be rewritten as  5⁻⁸ × 2⁵ where each base comes only once.

To learn more about Exponentiation, click on the link given below:

https://brainly.com/question/2193820

#SPJ2

Step-by-step explanation:

2 points, their distance and their x and y coordinate differences create a right-angled triangle with the distance being the Hypotenuse (the side opposite of the 90° angle).

and so, the distance formula is nothing else than Pythagoras :

distance² = (x coordinate difference)² + (y coordinate difference)²

distance² = (xh - xp)² + (yh - yp)² =

= (1 - -5)² + (-3 - 2)² =

= (1 + 5)² + (-5)² = 6² + 25 = 36+25 = 61

distance = sqrt(61)

as you can see, due to the squaring of the differences it is not important which point gets subtracted from which point. but it is important that once you decide a sequence for x, you use the same sequence also for y (or vice versa).

Answer: 2.77

The expected value is positive, so you expect to gain on average $2.77 per draw.

================================================

Explanation:

Define two events

W = winning = getting a card 4 or less

L = losing = getting 5 or higher

P(W) = probability of winning

P(W) = 12/52 since there are 12 cards that are four or less out of 52

P(W) = 3/13 for any suit of 13, there are 3 cards that are four or less

P(L) = 1-P(W)

P(L) = 1-3/13

P(L) = 13/13 - 3/13

P(L) = 10/13

V(W) = net value of winning

V(W) = 162

V(L) = net value of losing

V(L) = -45

------------------

E(X) = expected value

E(X) = P(W)*V(W) + P(L)*V(L)

E(X) = (3/13)*162 + (10/13)*(-45)

E(X) = 36/13

E(X) = 2.76923076923077

E(X) = 2.77 rounding to two decimal places (to the nearest cent)

This game is in favor to the player since we got a positive expected value. A fair game would occur if the expected value was 0.

The value of x in the secant intersection is 4.

If two secant segments are drawn to a circle from an exterior point, then the product of the measures of one secant segment and its external secant segment is equal to the product of the measures of the other secant segment and its external secant segment.

Therefore, let's find the value of x using the secant intersection theorem as follows;

4(4+x + 2) = 5(5 + x - 1)

4(6 + x) = 5(4 + x)

24 + 4x = 20 + 5x

24 - 20 = 5x - 4x

x = 4

Therefore,

x = 4

learn more on secant here: https://brainly.com/question/15601706

#SPJ1

Answer:

yes Bro it is correct ar u writing an exam

Answer:

C.

Step-by-step explanation:

5/4x-2=3/2x-4

5/4x-3/2x = -4+2

(multiply both sides by 4)

5x-6x=-16+8

-x=-8

(multiply by -1)

x=8

Answer:

C

Step-by-step explanation:

\(\frac{5x}{2} +\frac{7}{2} =\frac{3x}{4} +14\\) isolate the terms with the variable x

\(\frac{5x}{2} -\frac{3x}{4} =14-\frac{7}{2}\) get the same denominator and combine like terms

\(\frac{10x-3x}{4} = \frac{28-7}{2}\) solve

\(\frac{7x}{4} =\frac{21}{2}\) crossmultiply and solve for x

\(x=\frac{4*21}{7*2} =6\) so is not the first option

try second

\(\frac{5x}{4} -9=\frac{3x}{2} -12\) same steps as before

\(\frac{5x-6x}{4}=9-12\\)

\(\frac{-x}{4} =\frac{-3}{1}\)  so  x=12 not the second option

try third option

\(\frac{5x}{4} -2=\frac{3x}{2} -4\)

\(\frac{5x-6x}{4} =2-4\)

\(\frac{-x}{4} =\frac{-2}{1}\) so x=8

The correct option for the given question is c) lim x→a¯ f(x) = f(a) when the function f(x) is said to have jump discontinuity at a point x=a.

Jump continuity is a concept in calculus that describes the behaviour of a function at a specific point where the function jumps from one value to another value without any intermediate values. In other words, a function is considered jump continuous at a point if the function approaches a finite limit from both the left and right sides of that point, but the function values on the left and right sides of the point are not equal.

According to the given information:

The correct notation for the left-hand limit as x approaches a from the left side is lim x→a¯, where the horizontal line above the "a" indicates approaching from the left side.

The statement "lim x→a¯ f(x) = f(a)" means that the limit of f(x) as x approaches a from the left side is equal to the value of f(a) at x = a. This indicates that the function f(x) has a jump discontinuity at x = a, where the function jumps from one value to another value at that specific point.

To know more about jump discontinuity visit: https://brainly.com/question/12644479

#SPJ1

Answer: x-9

Step-by-step explanation: You can rewrite that to get 4/3x-1/3x-5-4

That simplifies to x-9

answer/explanation:

hope this helps

Answer:

let a, b, c be integers. Prove that if a to the power 3 + b to the power 3 + c to the power 3 is divisible by 9, then one of the numbers a , b , c is divisible by 3

Step-by-step explanation:

Answer:

C . neither 8500 nor 850,000

Since the y-intercept of the line is (0,1) and the line passes through the point (2,4) which is also satisfied by the equation of the line, the given equation represents the graph of the line.

The slope-intercept form of a line is y = mx +c where m is the slope of the line and c is the y-intercept.

The given equation of the line is y = (3/2)x + 1.

To find the y-intercept of the line, substitute x = 0 into the given equation,

y = (3/2)(0) + 1

y = 1

Note that the y-intercept of the graph of the line is also 1.

The graph of the line passes through points (2,4).

To verify whether the equation satisfies the coordinates of (2,4) or not, substitute the coordinates of the point into the given equation:

4 = (3/2)(2) + 1

4 =4

The equation is true.

Hence, it can be said that the given equation represents the graph of the line.

To learn more about the slope-intercept form of a line, click here:

https://brainly.com/question/9682526

#SPJ1

Answer:

£26.77

Step-by-step explanation:

450(100% + 2%)^6

= 450 (1.02)^6

= 506.77.

506.77 - 480 - 26.77.

Riley had £26.77 left.

Answer:

4 and 9

Step-by-step explanation:

I am going to use an upper case E for the symbol in the answers. The E symbol means "is a member of set..."

So " 1 E A " means "1 is a member of set A."

And " 4 E A" means "4 is a member of set A.

Now at the beginning of the question they told you what numbers were in which sets. 1 through 9 are in set U. But only 4 and 9 are in set A. The contents of the set are listed in between a pair of grouping symbols { } that are kind of squiggly brackets. That's how you know what is in the set.

Since set A only contains 4 and 9, those are your two correct answers:

"4 E A" AND "9 E A"

Tip percentage = 20% = 20/100 = 0.2 (decimal form)

Cost of the dinner = d

The total cost of the bill:

Multiply the cost of the dinner by (1+0.20).

D (1+0.20)

d 1.20

1.2 d

Answer:35x^3 + 15x^2 + 42xz + 28x + 18z + 12

Step-by-step explanation:

(7x + 3) (5x^2 + 6z + 4)

7 (5^2 + 6 + 4) +3 (5^2 + 6 + 4)

35^3 +42 + 28 + 15^2 + 18 + 12

35^3 + 15x^2 + 42xz + 28x + 18z + 12