Which function is linear?

A researcher is interested in knowing the average height of the men in a village. To the researcher, the population of interest

Anna11 [10]

Answer:

The population mean height of men in the village is 5.78 feet.

The sample mean height of men in the village is 7.8 feet.

Step-by-step explanation:

It is provided that the researcher's interest is in knowing the average height of the men in a village.

To the researcher, the population of interest is the men in the village, the relevant population data are the height of men in the village, and the population parameter of interest is the mean height of men.

It is also provided that there are 590 men in the village, and the sum of their heights is 3,410.2 feet.

Compute the average height as follows:

$\bar X_{H}=\frac{3410.2}{590}=5.78\ \text{feet}$

Thus, the population mean height of men in the village is 5.78 feet.

It is given that the researcher measured the heights of 18 village men and calculated the average to estimate the average height of all the village men.

The sample for his estimation is 18 men, the relevant sample data are the heights of the 18 men, and the sample statistic is the sample mean height.

It is also given that the sum of the heights of the 18 village men is 104.4 feet.

Compute the average height of the 18 men as follows:

$\bar x_{H}=\frac{104.4}{18}=7.8\ \text{feet}$

Thus, the sample mean height of men in the village is 7.8 feet.

8 0

3 years ago

- Alisha had 3/4 yards of ribbon. She wanted to use it to decorate

Pachacha [2.7K]

Answer:

1/4 yards

Step-by-step explanation:

3/4 is the total. Divide the total by 3 to get the answer.

4 0

4 years ago

Help me with this plz, I ain’t good at math at all.

Ad libitum [116K]

I’ll be happy to help!
Since a right angle is equal to 90 degrees, we can add the 67+90 which equals 157, so since a triangle is equal to 180, we can subtract 180-157.
180-157= 23
The answer for x is 23!

5 0

3 years ago

Identify all of the root(s) of g(x) = (x2 + 3x - 4)(x2 - 4x + 29).

elena-s [515]

Answer:

1, -4, 2 + 5i, 2 - 5i

Step-by-step explanation:

First, I factor x^2 + 3x - 4

==> I get: (x - 1) (x +4)

Then, I factor (x^2 - 4x + 29)

==> And I get (2 + 5i) (2 - 5i)

You can use the quadratic formula to factor or use the "X" to solve them.

Hope this help!

8 0

3 years ago

Read 2 more answers

PLEASE SOLVE THIS FOR ME. HELP ASAP!!!

hjlf

Answer:

m = -3

b = 4

Equation: y = -3x + 4

Step-by-step explanation:

The equation for a straight line is y = mx + b.

The line crosses the y-axis at (0,4). So, b (the y-intercept) will be 4.

Now, to find m (the slope). The next point on the line is (1,1). To get there, you go down 3 units (-3) and to the right 1 unit.

Slope is known as rise (change in x-axis) over run (change in y-axis). So, -3 ÷ 1 = -3. m will be -3.

For the equation of the line, just plug the numbers into the equation for a straight line.

y = mx + b

y = -3x + 4

Hope that helps.

4 0

3 years ago