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3 years ago

Why aren’t voluntary response samples usually representative of the population ?

Mathematics

2 answers:

FromTheMoon [43]3 years ago

7 0

The second choice is correct. An example of this is a voluntary "product feedback surveys" which tend to biased toward the negative. While people with both positive and negative feedback respond overall, customers who have a complaint are more motivated to take the time, and thus are overrepresented.

stira [4]3 years ago

4 0

definitely the second, the people who volunteer usually have a motive to do so and will be the only ones represented.

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Bill paid $800 simple interest on a 4% loan over 5 years for a new car. What was the original amount he borrowed.

Ede4ka [16]

12months(5years)= 60months($800.00) =48,000•.04%

6 0

3 years ago

Estimate by rounding each number to the nearest hundredth and then subtract 360.727 - 89.852

kykrilka [37]

Hi there!

The correct answer for you is 270.88.

To round to the hundreth's place (.01), you need to take the number in the thousand's place (.001), and determine if the number needs to go up or down.

If the number in the thousand's place is greater than 4, then the number goes up.

360.727 --> This means that the hundreth's number goes up to 3.

If the number in the thousand's place is lesser than 5, then that number stays the same.

89.852 --> This means that the hundreth's number stays the same.

After you round, then just subtract:

360.73 - 89.85 = 270.88.

I hope this helps!
Brady

7 0

3 years ago

Find 4 divided by 1/5 Simplify the answer and write as a whole number

Nitella [24]

Answer:

Step-by-step explanation:

Hope this helps! Have a great day ahead. Tell me if im wrong :)

4 0

3 years ago

Read 2 more answers

Need help ASAP please and thank you

noname [10]

Answer:

$-3m^{12}{n^{6} }$

Step-by-step explanation:

To begin simplifying this, we can first divide the coefficients, giving us:

$\frac{-3m^{5}n^{4} }{m^{-7} n^{-2} }$

We know that when dividing exponents, this means we need to subtract the exponent on the denominator from the numerator. This gives us:

$\frac{-3m^{5+7} n^{4+2} }{1}$

Now, simplifying this gets:

$-3m^{12}{n^{6} }$

8 0

3 years ago

Ellen has a bag with 3 red marbles and 2 blue marbles in it. She is going to randomly draw a marble from the bag 300 times, putt

sweet [91]

Answer:

No. of times Ellen draws a blue marble = 120

Step-by-step explanation:

No. of red marbles = 3

No. of blue marbles = 2

$\text{Probability of drawing a blue marble = }\frac{\text{No. of possible outcomes}}{\text{Total no. of outcomes}}\\\\P(B)=\frac{2}{5}\\\\No. of draws (n) = 300\\\text{So, total probability = }n\times P(B)\\\\=100\times \frac{2}{5}=120.$

So, the required probability is 120.

7 0

3 years ago

Read 2 more answers