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nika2105 [10]
3 years ago
10

Based on survey results, the mean amount of credit card debt for U.S. adults under 35 is $8,724. This point estimate would be un

biased and most accurate if the survey were based on which of the following? A. O A random sample of 1,500 U.S. adults under 35 B. O A random sample of 2,800 U.S. adults under 35 C. O A random sample of 3,000 U.S. college students D. O A national television news station poll with 3,500 responses
Mathematics
1 answer:
ira [324]3 years ago
4 0

Answer:

Step-by-step explanation:

Given that for X the amount of credit card debt for U.S. adults under 35, is

having mean as 8724 dollars.  

For this point estimate to be unbiased and most accurate we must ensure that

i) The sample represents the population

ii) Samples are drawn at random

iii) Sample sizes are sufficienly large.

Hence we see that C is not right as college students cannot represent the entire population.  Tv poll cannot be said to be random since there may be a significant population who was not aware about this poll.  A and B are right but B is better with more sample size.

You might be interested in
If their food and beverages costs$25.30 and there is an 8% meals tax, how much is the bill
Mashutka [201]
Hey there Unrazed90,

Answer : 

100% = $25.30
1% = $25.30 / 100
      = $0.253
8% = $0.253 x 8 
      = $2.024
Total = $25.30 + $2.024
         = $27.324
         = $27

Hope this helps :D

<em>~Natasha ♥</em>
8 0
3 years ago
Karl is building a rectangular garden bed. The length is 6 feet. She has 20 feet of boards to make the sides. Write and solve an
natali 33 [55]

Answer:

The width of the garden bed must be less than or equal to 4 feet.

w\leq4

Explanation:

Given that;

She has 20 feet of boards to make the sides.

The perimeter of the garden bed must not be more than 20 feet

\begin{gathered} P=2l+2w\leq20 \\ 2l+2w\leq20 \end{gathered}

Given;

The length is 6 feet;

l=6

To get the inequality for the width w, let us substitute the value of the length into the inequality above and simplify;

\begin{gathered} 2l+2w\leq20 \\ 2(6)+2w\leq20 \\ 12+2w\leq20 \\ 2w\leq20-12 \\ 2w\leq8 \\ \frac{2w}{2}\leq\frac{8}{2} \\ w\leq4 \end{gathered}

Therefore, the width of the garden bed must be less than or equal to 4 feet.

w\leq4

8 0
1 year ago
Help needed
Alexeev081 [22]
The square root of a circle would be your answer because 4.2-8
5 0
2 years ago
100 points and brainlyest !!! ONLY ANSWER IF U KNOW THE ANSWER !!!
Reil [10]

Answer:

Step-by-step explanation:

A” (-2,2)

B” (-1,-2)

C” (-4,-4)

5 0
2 years ago
Read 2 more answers
Select all the true statements.
strojnjashka [21]

Answer:

5+(-5)=0

-2+2=0

Step-by-step explanation:

8 0
3 years ago
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