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Marrrta [24]
3 years ago
5

A marketing firm conducts a survey to find out how many people use a product. One hundred people are contacted for the study and

fifteen confirm that they use the product. Which describes the survey?
The marketing firm is going forward in time and observing groups sharing common factors.


The marketing firm is applying some treatment to the subjects and then proceeding to observe its effect on the subjects.


The marketing firm is observing and measuring specific characteristics of the subjects, but is not attempting to modify the subjects.


The marketing firm is going back in time to collect data over some past period
Mathematics
2 answers:
slavikrds [6]3 years ago
8 0
The answer would be 4. this is because the data is inconsistent, and they would just find more data of previous users, because this adds more consensus. if that was wrong ( which is unlikely) it is 1, because it is checking the interests of common products. i pick tis because it has a consensus, similar to the fourth answer. good luck! hope this helped!
Juli2301 [7.4K]3 years ago
4 0
#3

<span>The marketing firm is observing and measuring specific characteristics of the subjects, but is not attempting to modify the subjects.</span>
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Construct a linear function, f(x), to model the ordered pairs (6, 2) and (7, −5). f(x) = 7x + 44 f(x) = x + 4 f(x) = −44x + 7 f(
Sonbull [250]

First we find the slope between the two given points.

m = (y2 - y1)/(x2 - x1) = (-5 - 2)/(7 - 6) = -7/1 = -7

Now we use the slope-intercept equation of a line.

y = mx + b

We use one point as x and y, and we solve for b.

2 = -7(6) + b

2 = -42 + b

b = 44

The equation is

y = -7x + 44

Answer: f(x) = -7x + 44

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3 years ago
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Directions: Simplify the following expressions using the imaginary number.
drek231 [11]

Answer:

1  i(sqrt5)

2  7i

3  -9i

4  -64i

5  -5i(sqrt2)

6  -4i(sqrt3)

7  10i(sqrt3)

8  2i(sqrt2)

9  3i(sqrt7)

10  -30i(sqrt2)

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monitta

The standard error of the estimate of average height in the city is 0.25.

Given average height 64 inches, sample mean and sample standard deviation of 4 inches.

We have to determine the standard error of the estimate of the average height in the city.

Standard error is the error which is predicted before research to happen in research. It is calculated by dividing the standard deviation of the sample by the square root of the sample size.

n=256

μ=mean

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Standard error=s/\sqrt{n}

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Hence the standard error of the estimate of the average height is 0.25.

Learn more about standard error at brainly.com/question/1191244

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