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dlinn [17]
1 year ago
5

In a study to add a new feature to a software program, the programmer introduced two categories, men and women, in the survey sh

e conducted. Is the study observational or experimental? if it is an experiment, what is the controlled factor?.
Mathematics
1 answer:
Alenkinab [10]1 year ago
5 0

The given study is observational study

To gauge how strongly two variables are related to one another, correlation coefficients are used.

A statistical indicator of the strength of the association between the relative movements of two variables is the correlation coefficient. The values are in the -1.0 to 1.0 range. There was a measurement error in the correlation if the estimated value was larger than 1.0 or lower than -1.0. Perfect negative correlation is shown by a correlation of -1.0, and perfect positive correlation is shown by a correlation of 1.0. A correlation of 0.0 indicates that there is no linear link between the two variables' movements. Finance and investing can benefit from the usage of correlation statistics.

To know more about statistic indicator

brainly.com/question/15074438

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prohojiy [21]

Answer:

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Step-by-step explanation:

5 0
3 years ago
Which expression represents the value of the series below?<br> 3+ 7 + 11 + 15 + ... + 1,671
torisob [31]

Answer:

Step-by-step explanation:

This is an Arithmetic Series with common difference 4 and first term 3

so the nth term an = 3 + (n -1)4

= 4n - 1.

The sum of n terms

= n/2 (a1 + L)

= n/2(3 + 1671)

=  837n.

There are (1671-3) / 4 + 1 = 418 terms in the series,

so the total value of the series is 837*418

= 349,866.

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4 0
2 years ago
PLEEEEEEASE HELP ME THIS IS VERY LATE WORK
kicyunya [14]
Part A: David wrote 0.003 + 0.0001 instead of <span>0.03 + 0.001 

Part B: T</span>he 1 should be in the thousandths place

Hope this helps, make sure to count each place from right after the decimal which is the tenths place, then hundredths, etc.
5 0
3 years ago
Select the postulate that is illustrated for the real numbers.
jeka57 [31]
The answer would be 1. The commutative postulate for multiplication. Hope this helped! Good luck! :)
6 0
2 years ago
Read 2 more answers
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topjm [15]

Answer:

f(x) = -8

Step-by-step explanation:

f(x) = x² + 2x – 8

f(x) = (-2)² + 2(-2) – 8

f(x) = (-2)² + 2(-2) – 8

f(x) = 4 + (-4) – 8

f(x) = 4 – 4 – 8

f(x) = 0 – 8

f(x) = -8

I hope this helps

8 0
2 years ago
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