A random sample of people is chosen to participate in a survey. For the survey results to be considered valid, which must be true of the random sample?

The sample must be the same size as the population.

The sample must represent the target population.

The sample must be biased.

The sample must be a group separate from the population.
ANSWER BELOW HERE
B - The sample must represent the target population.

Answer The sample must represent the target population.

Step-by-step explanation:

Answer:

The sample must represent the target population

Step-by-step explanation:

To figure out the answer to can eliminate the answers that don't make sense.

The question is A random sample of people is chosen to participate in a survey. For the survey results to be considered valid, which must be true of the random sample?

Lets look at our answers-

A: The sample must be the same size as the population.

That does not make sense as the answer because the sample doesn't always have to be the same size as the population. So let's cross that out.

B: The sample must represent the target population.

That Makes the most sense because if you have a survey and your trying to get people opinion the sample must represent the target.

C: The sample must be biased.

This answer also makes a bit sense but not as much as B.

D: The sample must be a group separate from the population.

This is wrong because if your trying to get multiple peoples opinion you don't need a specific or separate group from the population.

So, Our answer is B: The sample must represent the target.

Please help answer number 1 and write down how you did it

Renee needs milk to make a pie for the pie sale. So far she has 10 gallons of milk. This 5/6 of what she needs. Ow much milk does Renee need in total?

Find the difference.
7 1/2 - 6 3/10

A. 13 4/5
B. 1 1/4
C. 1 1/5
D. 1 1/10

Please make sure your answer is 99.9% correct

Find the slope of the line.

The slope is ___

PLS!!! I NEEED HELP!!! A rectangular piece of land will be divided diagonally into 2 congruent triangular sections. One section is being paved for parking. The blueprint measurements for the piece of land are inches 4 wide and 16 inches long.

The blueprint scale is:

1/4 inch = 10 yards.

The choice A. was wrong.

How much area will be paved?

A runner has run 1.192 kilometers of a 10-kilometer race. How much farther does he need to run to finish the race?

I flaked

Jaden has a fair six-sided die, a four-part spinner, and a fair two-sided coin. He is going to roll the die, spin the spinner, and flip the coin.





What is the probability Jaden rolls an even number, spins a vowel, and lands on heads?

a 3/16
b 1/8
c 1/16
d 1/4

What is the cube of 7?

A trendline passes through the ordered pairs (9, 12) and (12, 17). What is the slope?

A certain drug is administered once a day. The concentration of the drug in the patient's bloodstream increases rapidly at first, but each successive dose has less effect than the preceding one. The total amount of the drug (in mg) in the bloodstream after the first dose is 42 mg. The amount after the second dose is 10.5 mg. The amount after the third does is 2.625 mg. Write an explicit formula to represent this scenario.
ANSWER DOWN BELOW
recursive and explicit formulas with sequences
A. f(n) = -30n + 72
B. f(n) = 42(1/4)^n-1
C. f(n) = 30n + 12
D. f(n) = 42(4)^n-1

A student has a container with a volume of 1.5 liters.She estimates the volume to be 0.9 liters. By what percent is the​ student's estimate​ off?

The sum of two numbers is 10. The larger number is 4
times the smaller number.

The system of equations used to represent this
scenario is y = -x + 10 and y = 4x.
What is the larger number?
4
6
8
10

help me, please ??????????/

could someone help with the PORTFOLIO item? ASAP? PLEASE
Plane Art
UNIT NAME: GEOMETRY
Directions: Follow the guidelines below from the M.C. Escher Gallery to create
your work of art for the "Math Behind the Art" exhibition.
•
•
•
•
Choose one kind of triangle to use for a tessellation: equilateral, isosceles, or
scalene.
Use technology or paper to create six or more congruent copies of your
chosen triangle and investigate how the shape tessellates.
Use your chosen triangle to create an artwork with tessellations. You can use
any sizes, colors, patterns, or art mediums. You can submit a scanned copy,
photo, screenshot, or snip of your artwork.
Provide the explanation of the math behind your tessellation that the gallery
will display next to your artwork.
o
o
o
Use the definition of your chosen triangle and what you know about
the interior angles of triangles to prove that any version or size of that
triangle will tessellate. (Hint: Study the interior angles where the
vertices meet in the tessellation.)
Include diagrams or other visual models to help explain your proof.
Think about how you could extend your work to prove that all triangles
tessellate, and share any theories you might have.
Your completed work of art will be submitted as your portfolio assessment. It must
include your tessellation art and your explanation for the math behind it.

You work two jobs. You earn $11.90 per hour as a salesperson and $10.50 per hour stocking shelves. Your combined earnings this month are $178.50. Let x represent the number of hours worked stocking shelves and let y represent the number of hours worked in sales. Graph the equation that models this situation.

. Melissa wants to check the accuracy of the finance charge on her promissory


note. She has a $6,000, 4-year loan at an APR of 3.11%. Round to the nearest cent.


a. What is her monthly payment?


b. What is the total of all her monthly payments?


c. What is the finance charge?


a


n ..mahoninto lend to 350% of the value of

which comparison is true?
62.1 >63
8 625

What’s the rate of change of this table?

x3 - (25 • 2) = 75

x =

3rd time asking this question, will mark brainliest :P

Write a story that can be represented by the equation

y = x + 1/4xy=x+1/4x

34. 40% of the students in a class like apples for breakfast. If 20 students like apples, how many students are in the class?

How are each of the following percent applications different, and how are they the same? Solve each problem, and then compare your solution process for each problem.



a. Silvio earns 10% for each car sale he makes while working at a used car dealership. If he sells a used car for $2,000, what is his commission?



b. Tu’s family stayed at a hotel for 10 nights on their vacation. The hotel charged a 10% room tax, per night. How much did they pay in room taxes if the room cost $200 per night?



c. Eric bought a new computer and printer online. He had to pay 10% in shipping fees. The items totaled $2,000. How much did the shipping cost?



d. Selena had her wedding rehearsal dinner at a restaurant. The restaurant’s policy is that gratuity is included in the bill for large parties. Her father said the food and service were exceptional, so he wanted to leave an extra 10% tip on the total amount of the bill. If the dinner bill totaled $2,000, how much money did her father leave as the extra tip?

Eight avocados cost $4.

How much do 9 avocados cost?

Write and equation for the area of the circle given the following conditions:

d = 15

There are four different ways that Roger can walk from his house to work. Which route is the shortest distance? (Hint: 1 yd ≈ 0.9 m)


Route Distance
A 1350 feet
B 1500 meters
C 320 yards
D 4 kilometers

on the left side of the triangle, it says 12 cm, for the right side of the triangle, it says 17 cm, below the triangle, it says 12 cm. find the area of the triangle and answer the question in square cm.

what + 89= 9(6+5) please solve for my answer and explain how you got your answer

Please solve this Screenshot/attachment that is included below, thanks!

Please Hurry And plz explain
(4)^5*(4)^-2