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3 years ago

Determine whether or not the following question can be considered as a statistical question.

Mathematics

1 answer:

Naddika [18.5K]3 years ago

5 0

The situation would come as follows: "Does Andrew make more money than Laura?"

The question can only be answered with a yes or no. Which does not generate any statistics because they are characterized by having an inherent variability in the data used to answer the question. And in this question there is no variability since if you earn more money or not because they are focused on itself, there is a positive or negative side and from there there is no variation.

Therefore NOT a statistical question.

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How to find amount of ammonia gas in mole if the question gives

UkoKoshka [18]

Answer:

0.409 mol

Step-by-step explanation:

Use ideal gas law:

PV = nRT

where P is absolute pressure,

V is volume,

n is number of moles,

R is universal gas constant,

and T is absolute temperature.

PV = nRT

(1 atm) (10.0 L) = n (0.0821 L·atm/mol/K) (25 + 273) K

n = 0.409 mol

6 0

4 years ago

What is the midpoint of the line segment with the endpoints J(–9, –4) and K(7, 8)?

Alexxandr [17]

The distance from -9 to 7 = 16 units.
Distance from -4 to 8 = 12 units.

Divide the two values and add them to the x and y values of the first set and the result will be our midpoint.

16/2 = 8. 8 + -9 = -1
12/2 = 6. 6 + -4 = 2

So our midpoint will be (-1,2)

7 0

3 years ago

Read 2 more answers

Sue is thinking of a number

Afina-wow [57]

Let the number be x
X *8 = 8x
8x-66= twice of the number
8x-66=2x
-66=2x-8x
-66=-6x
Divide both sides by -6
X=11

8 0

3 years ago

Plz answer quick write an inequality for the word sentence the temperature t is higher than 5°

Katena32 [7]

T>5

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3 0

3 years ago

BRAINLIEST + POINTS!

sertanlavr [38]

Answer:

the correlation coefficient of the line of best fit is, 0.98247.

Step-by-step explanation:

Correlation Coefficient are used to find how strong relationship between the data. It expressed its values between +1 and -1. It is represented by r.

* if 0<r<1 indicates a strong positive relationship.

* -1<r <0 indicates a strong negative relationship.

* r=0 indicates no relationship at all.

The formula for this :

$r = \frac{n(\sum xy)-(\sum x)(\sum y)}{\sqrt{[n\sum x^2-(\sum x)^2][n\sum y^2-(\sum y)^2]}}$

Given the data: (-3, -40) , (1, 12), (5, 72) and (7,137)

Here, n = 4

To calculate the correlation coefficient r;

Substitute the values of data in above formla of r , as shown in the Figure 1:

then;

$r=\frac{4\cdot 1451-(10)(181)}{[4\cdot84-(10)^2][4\cdot 256977 -(181)^2]}$

$r=\frac{5804-1810}{\sqrt{[336-100][102788 -32761]}}=\frac{3994}{\sqrt{[236][70027]}}$

$r=\frac{3994}{4065.26408} =0.98247$

Therefore, the correlation coefficient r is, 0.98247 (Positive relationship)

6 0

3 years ago