The CEO of a company wants to determine whether taking the employees to a company retreat would boost their morale. He decides to survey a simple random sample of 50 of the 250 employees. Which of the following options would guarantee a simple random sample? asking the first 50 employees who come to work on Monday morning to take the survey telling the managers in each of the 5 departments to randomly select 10 people to take the survey giving each employee a unique number from 1 to 250 and randomly selecting 50 people to take the survey sending an email to all 250 employees asking them to complete the survey within the next couple of days

Answers

Answer 1

Answer:

The option that would guarantee a simple random sample would be that giving each employee a uniquenumber from 1 to 250 and randomly selecting 50 people to take the survey. That is option C.

What is simple random sampling?

Simple random sampling can be defined as a type of probability sampling where each member of the population has an equal chance of being selected for the sample.

The process of simple random sampling is quite simple: every member of the population is assigned a unique number, and then a random number generator is used to select participants.

This ensures that each member of the population has an equal chance of being selected for the sample.

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Answer 2

Answer:

Answer:

Step-by-step explanation:

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What is the next term in the geometric sequence 16, –4, 1, –(1/4), … ?

Answers

$a_1=16;\ a_2=-4;\ a_3=1;\ a_4=-(1)/(4)\n\nq=a_2:a_1\n\nq=-4:16=-(1)/(4)\n\na_n=a_1\cdot q^(n-1)\n\na_n=16\cdot\left(-(1)/(4)\right)^(n-1)=16\cdot\left(-(1)/(4)\right)^n\cdot\left(-(1)/(4)\right)^(-1)\n\n=16\cdot\left(-(1)/(4)\right)^n\cdot(-4)=-64\cdot\left(-(1)/(4)\right)^n=(-4)^3\cdot\left(-(1)/(4)\right)^n=\left(-(1)/(4)\right)^(-3)\cdot\left(-(1)/(4)\right)^n\n\n=\left(-(1)/(4)\right)^(n-3)$

$a_5=\left(-(1)/(4)\right)^(5-3)=\left(-(1)/(4)\right)^2=(1)/(16)\n\na_6=\left(-(1)/(4)\right)^(6-3)=\left(-(1)/(4)\right)^3=-(1)/(64)\n\vdots$

Lebron James shot the ball 1103 times during the 2019-2020 basketball season. He made 643 of the shots. What is his shooting percentage?

Answers

Answer:

1.71539657854

Step-by-step explanation:

Find the distance between (-6,8) and (10,-4)

Answers

The distance between (-6,8) and (10,-4) is 20 units.

What is the distance between two points ( p,q) and (x,y)?

The shortest distance (length of the straight line segment's length connecting both given points) between points ( p,q) and (x,y) is:

$D = √[(x-p)² + (y-q)²] D = √((x-p)^2 + (y-q)^2) \: \rm units.$

We are given that;

The points (-6,8) and (10,-4)

Now,

To use the formula, you need to plug in the values of x1, y1, x2 and y2 into the formula and simplify. For example, to find the distance between (-6,8) and (10,-4), you can do:

d = (10 - (-6))^2 + (-4 - 8)^2

d = (16)^2 + (-12)^2

d = 256 + 144

d = 400

d = sqrt(400)

d = 20

Therefore, the distance formula the answer will be 20 units.

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Answer:

use the distance formula you can find it on the net

Jason considered two similar televisions at a local electronics store. The generic version was based on the brand name and was three fourths the size of the brand name. If the generic television set is 12 inches by 24 inches, what are the dimensions of the brand name television?

Answers

Answer: The dimensions of brand name will be

16 inches by 32 inches.

Step-by-step explanation:

Since we have given that

Dimensions of generic version is given by

$12\text{ inches }* 24\text{ inches }$

Since we have also given that

$Generic=(3)/(4)* \text{brand }$

So, we first use the 12 inches

$12=(3)/(4)* \text{ brand}\n\n12* (4)/(3)=brand\n\n16\text{ inches}=brand$

Similarly,

if we now use the dimension 24 inches

$24=(3)/(4)* \text{ brand}\n\n24* (4)/(3)=brand\n\n32\text{ inches}=brand$

so, the dimensions of brand name will be

16 inches by 32 inches.

12*4/3 = 16
24*4/3= 32

How do you add degrees, minutes and seconds?

Answers

It isn't easy. You just have to go slowly and keep your wits about you.

-- Add the seconds. If the sum is more than 60, then take 60 off, write what's left
as seconds, and carry 1 minute next door to the minutes.

-- Add the minutes. If the sum is more than 60, then take 60 off, write what's left
as minutes, and carry 1 degree next door to the degrees.

-- Add the degrees.

You can use exactly the same procedure to add hours, minutes, and seconds
of time.

Dimetri says that a function that is made of terms where the variable is raised only to an odd power will be an odd function. Do you agree with Dimetri? Explain why or why not.

Answers

No, I do not.

Explanation:
Algebraically, an odd function is one where f(-x) = -f(x). This means that if we substitute -x for every x in the function, it should be the same as switching every sign in the function. This does not always work.

For example, if f(x)=x³+7:
f(-x)=(-x)³+7=-x³+7.

However, since the 7 did not become -7, it is not the same as -f(x), so it is not an odd function.

Dimetri statement is incorrect, as the function is odd if its greatest degree is odd when the lower terms are ignored.

What is a function?

It is defined as a special type of relationship, and they have a predefined domain and range according to the function every value in the domain is related to exactly one value in the range.

As we know,

For even function: f(-x) = f(x)

For odd function: f(-x) = -f(x)

If Dimetri says that, a function that is made of terms where the variable is raised only to an odd power will be an odd function.

The Dimetri statement is incorrect, as the function is odd if its greatest degree is odd when the lower terms are ignored.

Thus, Dimetri statement is incorrect, as the function is odd if its greatest degree is odd when the lower terms are ignored.

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Dimitri determined that the ordered pair (2, –2) is a solution to the system of linear equations 7x + 9y = –4 and 5x – 2y = 6 as shown.He mixed up the coordinates of the ordered pair when substituting it into the equations 7x + 9y = –4 and 5x – 2y = 6.He checked the equation 7x + 9y = –4 first when he should have checked first.He made a mistake in his calculations when substituting the ordered pair into the equation 7x + 9y = –4 and simplifying.He made a mistake in his calculations when substituting the ordered pair into the equation 5x – 2y = 6 and simplifying.

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