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Nesterboy [21]
3 years ago
11

Maridel wants to find out how many of her classmates plan to come to the next football game. There are 800 students in her schoo

l. She selects a sample of the population by putting the names of every student into a bag and drawing out 100 names. Which statement(s) describe her sampling method? Check all that apply. Her method will produce a biased sample. Her method will produce a valid sample. Her method will produce a random sample. Her method will produce a representative sample. Her method will produce an invalid sample.
Mathematics
2 answers:
OverLord2011 [107]3 years ago
8 0

Her method will produce a valid sample.

Her method will produce a random sample.

Her method will produce a representative sample.



VLD [36.1K]3 years ago
4 0

Answer:

2nd, 3rd and 4th options are correct.

Step-by-step explanation:

There are 800 students in her school. Maridel selects a sample of the population by putting the names of every student into a bag and drawing out 100 names.

Her sampling method is random and valid. As she has not chosen the names of students based on some order or preference, she has chosen completely random names.

So, the statements that describe her sampling method are:

2. Her method will produce a valid sample.

3. Her method will produce a random sample.

4. Her method will produce a representative sample.

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Answer:

B

Step-by-step explanation:

because it says between 4 and 8 and doesn't have a negative so its positive

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2 years ago
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A truck can be rented from Company A for ​$70 a day plus ​$0.20 per mile. Company B charges ​$20 a day plus ​$0.40 per mile to r
Otrada [13]

Answer:

For Company A to have a better deal, the truck must be driven more than 250 miles per day.

Step-by-step explanation:

Given that:

Rent per day of company A = $70

Per mile charges = $0.20

Let,

x be the number of miles.

A(x) = 0.20x + 70

Rent per day of company B = $20

Per mile charges = $0.40

B(x) = 0.40x + 20

For make Company A better deal,

A(x) > B(x)

0.20x+70 > 0.40+20

0.20x-0.40x>20-70

-0.20x>-50

Dividing both sides by -0.20

\frac{-0.20x}{-0.20}>\frac{-50}{-0.20}\\x>250

Hence,

For Company A to have a better deal, the truck must be driven more than 250 miles per day.

8 0
3 years ago
if the current batch of pills is the first of the day and your goal is to produce a total of 600 what percentage of your goal wi
Zanzabum

Answer:

<u>12.5% ≈ 13%</u>

Step-by-step explanation:

The rest of the question is: There are 75 pills in the batch.

The current batch of pills is the first of the day and our goal is to produce a total of 600.

If there are 75 pills in the batch so percentage of goal completed will be

[(number of pills in the batch)/(Total pills)] * 100

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≈ 13% to the nearest whole number

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What expression is equivalent to 4x(3+y)
Sholpan [36]

Answer:

12x+4xy

Step-by-step explanation:

4x(3+y)

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You distribute the 4x in the parenthesis

7 0
3 years ago
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